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    #1

    Transport Error appearing in Chrome

    I have a strange transport error message appearing even before the first request gets to our servlet in Chrome. I was wondering what scenarios would cause this error? I can see that the first fetch is called in the listgrid before it is fully drawn. Could this be the cause?

    Transport error - HTTP code: 0 for URL: http://localhost:8080/cwf/a
    Tags: None
    #2
    No, it wouldn't matter if a grid was not drawn.

    From some brief Googling there is an already-fixed Chrome bug that could cause this for an empty xmlHttpRequest, but we can't tell anything about this request from just the URL.

    Comment

      #3
      hmm ok. I did a check to only do a fetch if the table is drawn and now I don't get that error anymore. I'll revert my change and try with the latest chrome.

      Comment

        #4
        There's definitely no general issue with an undrawn ListGrid fetching. Your change probably reordered operations in a way that avoids the true cause of the problem.

        Comment

          #5
          Ok. Upgraded Chrome to 19.0.1084.52 m and I am still seeing this popup - any way I can get more info using the debugger? What logging should I turn on?

          Comment

            #6
            First few steps are the same as for any similar issue: what's in the RPC tab and the Developer Console. You can also use Chrome's Developer Tools (press f12) to see the actual network request and response.

            Comment

              #7
              Ok. I don't know if this is actually the request but it is the only one i see with /a in the Networks Tools list.

              Code:
              Request URL:http://localhost:8081/cwf/a?isc_rpc=1&isc_v=v8.2p_2012-05-17&isc_xhr=1
Request Headersview source
Content-Type:application/x-www-form-urlencoded; charset=UTF-8
Origin:http://localhost:8081
Referer:http://localhost:8081/cwf/
User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.52 Safari/536.5
Query String Parametersview URL encoded
isc_rpc:1
isc_v:v8.2p_2012-05-17
isc_xhr:1
Form Dataview URL encoded
isc_tnum:0
_transaction:<transaction xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance" xsi:type="xsd:Object"><transactionNum xsi:type="xsd:long">0</transactionNum><operations xsi:type="xsd:List"><elem xsi:type="xsd:Object"><criteria xsi:type="xsd:Object"></criteria><operationConfig xsi:type="xsd:Object"><dataSource>page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable$ds</dataSource><operationType>fetch</operationType><textMatchStyle>exact</textMatchStyle></operationConfig><startRow xsi:type="xsd:long">0</startRow><endRow xsi:type="xsd:long">75</endRow><componentId>page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable</componentId><appID>builtinApplication</appID><operation>page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable$ds_fetch</operation><oldValues xsi:type="xsd:Object"></oldValues></elem></operations></transaction>
protocolVersion:1.0

              Comment

                #8
                OK.. let us know when you can gather all the other information we requested.

                Comment

                  #9
                  The ONLY request in the RPC tab by the time the first request comes in our servlet:

                  Code:
                  {
    "actionURL":"http://localhost:8081/cwf/a", 
    "showPrompt":false, 
    "prompt":"Finding records that match your criteria...", 
    "transport":"xmlHttpRequest", 
    "promptStyle":"cursor", 
    "bypassCache":true, 
    "data":{
        "criteria":{
        }, 
        "operationConfig":{
            "dataSource":"page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable$ds", 
            "repo":null, 
            "operationType":"fetch", 
            "textMatchStyle":"exact"
        }, 
        "startRow":0, 
        "endRow":75, 
        "componentId":"page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable", 
        "appID":"builtinApplication", 
        "operation":"page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable$ds_fetch", 
        "oldValues":{
        }, 
        "streamResults":null, 
        "exportToFilesystem":null, 
        "exportToClient":null
    }
}


                  The ONLY /a request in Chrome Dev Tools by the time the first request comes in our servlet:


                  Code:
                  Request URL:http://localhost:8081/cwf/a?isc_rpc=1&isc_v=v8.2p_2012-05-17&isc_xhr=1
Request Headersview source
Content-Type:application/x-www-form-urlencoded; charset=UTF-8
Origin:http://localhost:8081
Referer:http://localhost:8081/cwf/
User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.52 Safari/536.5
Query String Parametersview URL encoded
isc_rpc:1
isc_v:v8.2p_2012-05-17
isc_xhr:1
Form Dataview URL encoded
isc_tnum:0
_transaction:<transaction xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance" xsi:type="xsd:Object"><transactionNum xsi:type="xsd:long">0</transactionNum><operations xsi:type="xsd:List"><elem xsi:type="xsd:Object"><criteria xsi:type="xsd:Object"></criteria><operationConfig xsi:type="xsd:Object"><dataSource>page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable$ds</dataSource><operationType>fetch</operationType><textMatchStyle>exact</textMatchStyle></operationConfig><startRow xsi:type="xsd:long">0</startRow><endRow xsi:type="xsd:long">75</endRow><componentId>page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable</componentId><appID>builtinApplication</appID><operation>page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable$ds_fetch</operation><oldValues xsi:type="xsd:Object"></oldValues></elem></operations></transaction>
protocolVersion:1.0

                  Comment

                    #10
                    And the responses were?

                    And what's in the Developer Console?

                    Comment

                      #11
                      Please note that the /a request that I see in the Networks tab does get a response from our server but the Transport error message is already showing in the UI before the request is received. This is why I think these requests are not related to the message.


                      RPC response:

                      Code:
                      [
    {
        data:[
            {
                cwPK__:"1", 
                $isCwSelected:false, 
                showGroupByLabel$cwEdit$:false, 
                showGroupByLabel:"New Customer Signature Home", 
                priorityValue:750, 
                $cwpriorityValue:"750", 
                divisionId:"Syracuse", 
                deriveOrderCount$cwEdit$:false, 
                deriveOrderCount:"10", 
                $cwderiveOrderCount:"10", 
                converttohoursMinutes$cwEdit$:false, 
                converttohoursMinutes:"627 hr 33 min", 
                returnQueueColor$cwEdit$:true, 
                returnQueueColor:"/pics/1_red.png", 
                returnQueueColor$imageWidth:16, 
                returnQueueColor$imageHeight:16
            }, 
            {
                cwPK__:"2", 
                $isCwSelected:false, 
                showGroupByLabel$cwEdit$:false, 
                showGroupByLabel:"New Customer Signature Home", 
                priorityValue:750, 
                $cwpriorityValue:"750", 
                divisionId:"South West Ohio", 
                deriveOrderCount$cwEdit$:false, 
                deriveOrderCount:"10", 
                $cwderiveOrderCount:"10", 
                converttohoursMinutes$cwEdit$:false, 
                converttohoursMinutes:"627 hr 22 min", 
                returnQueueColor$cwEdit$:true, 
                returnQueueColor:"/pics/1_red.png", 
                returnQueueColor$imageWidth:16, 
                returnQueueColor$imageHeight:16
            }, 
            {
                cwPK__:"3", 
                $isCwSelected:false, 
                showGroupByLabel$cwEdit$:false, 
                showGroupByLabel:"New Customer Signature Home", 
                priorityValue:750, 
                $cwpriorityValue:"750", 
                divisionId:"National", 
                deriveOrderCount$cwEdit$:false, 
                deriveOrderCount:"10", 
                $cwderiveOrderCount:"10", 
                converttohoursMinutes$cwEdit$:false, 
                converttohoursMinutes:"626 hr 30 min", 
                returnQueueColor$cwEdit$:true, 
                returnQueueColor:"/pics/1_red.png", 
                returnQueueColor$imageWidth:16, 
                returnQueueColor$imageHeight:16
            }, 
            {
                cwPK__:"4", 
                $isCwSelected:false, 
                showGroupByLabel$cwEdit$:false, 
                showGroupByLabel:"New Customer Signature Home", 
                priorityValue:750, 
                $cwpriorityValue:"750", 
                divisionId:"San Diego", 
                deriveOrderCount$cwEdit$:false, 
                deriveOrderCount:"10", 
                $cwderiveOrderCount:"10", 
                converttohoursMinutes$cwEdit$:false, 
                converttohoursMinutes:"626 hr 29 min", 
                returnQueueColor$cwEdit$:true, 
                returnQueueColor:"/pics/1_red.png", 
                returnQueueColor$imageWidth:16, 
                returnQueueColor$imageHeight:16
            }, 
            {
                cwPK__:"5", 
                $isCwSelected:false, 
                showGroupByLabel$cwEdit$:false, 
                showGroupByLabel:"New Customer Signature Home", 
                priorityValue:750, 
                $cwpriorityValue:"750", 
                divisionId:"South Texas", 
                deriveOrderCount$cwEdit$:false, 
                deriveOrderCount:"10", 
                $cwderiveOrderCount:"10", 
                converttohoursMinutes$cwEdit$:false, 
                converttohoursMinutes:"626 hr 29 min", 
                returnQueueColor$cwEdit$:true, 
                returnQueueColor:"/pics/1_red.png", 
                returnQueueColor$imageWidth:16, 
                returnQueueColor$imageHeight:16
            }, 
            {
                cwPK__:"6", 
                $isCwSelected:false, 
                showGroupByLabel$cwEdit$:false, 
                showGroupByLabel:"New Customer Double Play", 
                priorityValue:650, 
                $cwpriorityValue:"650", 
                divisionId:"Wisconsin", 
                deriveOrderCount$cwEdit$:false, 
                deriveOrderCount:"10", 
                $cwderiveOrderCount:"10", 
                converttohoursMinutes$cwEdit$:false, 
                converttohoursMinutes:"638 hr 6 min", 
                returnQueueColor$cwEdit$:true, 
                returnQueueColor:"/pics/1_red.png", 
                returnQueueColor$imageWidth:16, 
                returnQueueColor$imageHeight:16
            }, 
            {
                cwPK__:"7", 
                $isCwSelected:false, 
                showGroupByLabel$cwEdit$:false, 
                showGroupByLabel:"New Customer Double Play", 
                priorityValue:650, 
                $cwpriorityValue:"650", 
                divisionId:"Buffalo", 
                deriveOrderCount$cwEdit$:false, 
                deriveOrderCount:"10", 
                $cwderiveOrderCount:"10", 
                converttohoursMinutes$cwEdit$:false, 
                converttohoursMinutes:"637 hr 43 min", 
                returnQueueColor$cwEdit$:true, 
                returnQueueColor:"/pics/1_red.png", 
                returnQueueColor$imageWidth:16, 
                returnQueueColor$imageHeight:16
            }, 
            {
                cwPK__:"8", 
                $isCwSelected:false, 
                showGroupByLabel$cwEdit$:false, 
                showGroupByLabel:"New Customer Triple Play", 
                priorityValue:650, 
                $cwpriorityValue:"650", 
                divisionId:"National", 
                deriveOrderCount$cwEdit$:false, 
                deriveOrderCount:"10", 
                $cwderiveOrderCount:"10", 
                converttohoursMinutes$cwEdit$:false, 
                converttohoursMinutes:"626 hr 29 min", 
                returnQueueColor$cwEdit$:true, 
                returnQueueColor:"/pics/1_red.png", 
                returnQueueColor$imageWidth:16, 
                returnQueueColor$imageHeight:16
            }, 
            {
                cwPK__:"9", 
                $isCwSelected:false, 
                showGroupByLabel$cwEdit$:false, 
                showGroupByLabel:"New Customer Triple Play", 
                priorityValue:650, 
                $cwpriorityValue:"650", 
                divisionId:"South West Texas", 
                deriveOrderCount$cwEdit$:false, 
                deriveOrderCount:"10", 
                $cwderiveOrderCount:"10", 
                converttohoursMinutes$cwEdit$:false, 
                converttohoursMinutes:"626 hr 29 min", 
                returnQueueColor$cwEdit$:true, 
                returnQueueColor:"/pics/1_red.png", 
                returnQueueColor$imageWidth:16, 
                returnQueueColor$imageHeight:16
            }, 
            {
                cwPK__:"10", 
                $isCwSelected:false, 
                showGroupByLabel$cwEdit$:false, 
                showGroupByLabel:"Existing Customer Single Play", 
                priorityValue:600, 
                $cwpriorityValue:"600", 
                divisionId:"National", 
                deriveOrderCount$cwEdit$:false, 
                deriveOrderCount:"10", 
                $cwderiveOrderCount:"10", 
                converttohoursMinutes$cwEdit$:false, 
                converttohoursMinutes:"626 hr 29 min", 
                returnQueueColor$cwEdit$:true, 
                returnQueueColor:"/pics/1_red.png", 
                returnQueueColor$imageWidth:16, 
                returnQueueColor$imageHeight:16
            }
        ], 
        endRow:10, 
        invalidateCache:false, 
        isDSResponse:true, 
        queueStatus:0, 
        startRow:0, 
        status:0, 
        totalRows:10
    }
]

                      Network tab response:

                      Code:
                      //isc_RPCResponseStart-->[{data:[{cwPK__:"1",$isCwSelected:false,"showGroupByLabel$cwEdit$":false,"showGroupByLabel":"New Customer Signature Home","priorityValue":750,"$cwpriorityValue":"750","divisionId":"Syracuse","deriveOrderCount$cwEdit$":false,"deriveOrderCount":"10","$cwderiveOrderCount":"10","converttohoursMinutes$cwEdit$":false,"converttohoursMinutes":"627 hr 33 min","returnQueueColor$cwEdit$":true,"returnQueueColor":"\/pics\/1_red.png",returnQueueColor$imageWidth:16,returnQueueColor$imageHeight:16},{cwPK__:"2",$isCwSelected:false,"showGroupByLabel$cwEdit$":false,"showGroupByLabel":"New Customer Signature Home","priorityValue":750,"$cwpriorityValue":"750","divisionId":"South West Ohio","deriveOrderCount$cwEdit$":false,"deriveOrderCount":"10","$cwderiveOrderCount":"10","converttohoursMinutes$cwEdit$":false,"converttohoursMinutes":"627 hr 22 min","returnQueueColor$cwEdit$":true,"returnQueueColor":"\/pics\/1_red.png",returnQueueColor$imageWidth:16,returnQueueColor$imageHeight:16},{cwPK__:"3",$isCwSelected:false,"showGroupByLabel$cwEdit$":false,"showGroupByLabel":"New Customer Signature Home","priorityValue":750,"$cwpriorityValue":"750","divisionId":"National","deriveOrderCount$cwEdit$":false,"deriveOrderCount":"10","$cwderiveOrderCount":"10","converttohoursMinutes$cwEdit$":false,"converttohoursMinutes":"626 hr 30 min","returnQueueColor$cwEdit$":true,"returnQueueColor":"\/pics\/1_red.png",returnQueueColor$imageWidth:16,returnQueueColor$imageHeight:16},{cwPK__:"4",$isCwSelected:false,"showGroupByLabel$cwEdit$":false,"showGroupByLabel":"New Customer Signature Home","priorityValue":750,"$cwpriorityValue":"750","divisionId":"San Diego","deriveOrderCount$cwEdit$":false,"deriveOrderCount":"10","$cwderiveOrderCount":"10","converttohoursMinutes$cwEdit$":false,"converttohoursMinutes":"626 hr 29 min","returnQueueColor$cwEdit$":true,"returnQueueColor":"\/pics\/1_red.png",returnQueueColor$imageWidth:16,returnQueueColor$imageHeight:16},{cwPK__:"5",$isCwSelected:false,"showGroupByLabel$cwEdit$":false,"showGroupByLabel":"New Customer Signature Home","priorityValue":750,"$cwpriorityValue":"750","divisionId":"South Texas","deriveOrderCount$cwEdit$":false,"deriveOrderCount":"10","$cwderiveOrderCount":"10","converttohoursMinutes$cwEdit$":false,"converttohoursMinutes":"626 hr 29 min","returnQueueColor$cwEdit$":true,"returnQueueColor":"\/pics\/1_red.png",returnQueueColor$imageWidth:16,returnQueueColor$imageHeight:16},{cwPK__:"6",$isCwSelected:false,"showGroupByLabel$cwEdit$":false,"showGroupByLabel":"New Customer Double Play","priorityValue":650,"$cwpriorityValue":"650","divisionId":"Wisconsin","deriveOrderCount$cwEdit$":false,"deriveOrderCount":"10","$cwderiveOrderCount":"10","converttohoursMinutes$cwEdit$":false,"converttohoursMinutes":"638 hr 6 min","returnQueueColor$cwEdit$":true,"returnQueueColor":"\/pics\/1_red.png",returnQueueColor$imageWidth:16,returnQueueColor$imageHeight:16},{cwPK__:"7",$isCwSelected:false,"showGroupByLabel$cwEdit$":false,"showGroupByLabel":"New Customer Double Play","priorityValue":650,"$cwpriorityValue":"650","divisionId":"Buffalo","deriveOrderCount$cwEdit$":false,"deriveOrderCount":"10","$cwderiveOrderCount":"10","converttohoursMinutes$cwEdit$":false,"converttohoursMinutes":"637 hr 43 min","returnQueueColor$cwEdit$":true,"returnQueueColor":"\/pics\/1_red.png",returnQueueColor$imageWidth:16,returnQueueColor$imageHeight:16},{cwPK__:"8",$isCwSelected:false,"showGroupByLabel$cwEdit$":false,"showGroupByLabel":"New Customer Triple Play","priorityValue":650,"$cwpriorityValue":"650","divisionId":"National","deriveOrderCount$cwEdit$":false,"deriveOrderCount":"10","$cwderiveOrderCount":"10","converttohoursMinutes$cwEdit$":false,"converttohoursMinutes":"626 hr 29 min","returnQueueColor$cwEdit$":true,"returnQueueColor":"\/pics\/1_red.png",returnQueueColor$imageWidth:16,returnQueueColor$imageHeight:16},{cwPK__:"9",$isCwSelected:false,"showGroupByLabel$cwEdit$":false,"showGroupByLabel":"New Customer Triple Play","priorityValue":650,"$cwpriorityValue":"650","divisionId":"South West Texas","deriveOrderCount$cwEdit$":false,"deriveOrderCount":"10","$cwderiveOrderCount":"10","converttohoursMinutes$cwEdit$":false,"converttohoursMinutes":"626 hr 29 min","returnQueueColor$cwEdit$":true,"returnQueueColor":"\/pics\/1_red.png",returnQueueColor$imageWidth:16,returnQueueColor$imageHeight:16},{cwPK__:"10",$isCwSelected:false,"showGroupByLabel$cwEdit$":false,"showGroupByLabel":"Existing Customer Single Play","priorityValue":600,"$cwpriorityValue":"600","divisionId":"National","deriveOrderCount$cwEdit$":false,"deriveOrderCount":"10","$cwderiveOrderCount":"10","converttohoursMinutes$cwEdit$":false,"converttohoursMinutes":"626 hr 29 min","returnQueueColor$cwEdit$":true,"returnQueueColor":"\/pics\/1_red.png",returnQueueColor$imageWidth:16,returnQueueColor$imageHeight:16}],endRow:10,invalidateCache:false,isDSResponse:true,queueStatus:0,startRow:0,status:0,totalRows:10}]//isc_RPCResponseEnd

                      Comment

                        #12
                        And here's the dev console:

                        Code:
                        
16:20:03.656:INFO:Log:initialized
16:20:03.819:WARN:Log:New Class ID: 'Window' collides with ID of existing object with value 'function Window() { [native code] }'.  Existing object will be replaced.
This conflict would be avoided by disabling ISC Simple Names mode.  See documentation for further information.
16:20:03.907:WARN:Log:New Class ID: 'Selection' collides with ID of existing object with value 'function Selection() { [native code] }'.  Existing object will be replaced.
This conflict would be avoided by disabling ISC Simple Names mode.  See documentation for further information.
16:20:04.374:WARN:Log:New Class ID: 'EditPane' collides with ID of existing Class object '[DataSource ID:EditPane]'.  Existing object will be replaced.
This conflict would be avoided by disabling ISC Simple Names mode.  See documentation for further information.
16:20:04.469:INFO:Log:isc.Page is loaded
16:20:05.031:WARN:Log:************************************layoutchildren NaN
16:20:05.032:WARN:Log:************************************cwResized NaN
16:20:05.037:WARN:Log:************************************layoutchildren NaN
16:20:05.037:WARN:Log:************************************cwResized NaN
16:20:05.040:WARN:Log:************************************layoutchildren NaN
16:20:05.040:WARN:Log:************************************cwResized NaN
16:20:05.056:WARN:Log:************************************layoutchildren NaN
16:20:05.056:WARN:Log:************************************cwResized NaN
16:20:05.072:WARN:Log:************************************layoutchildren NaN
16:20:05.072:WARN:Log:************************************cwResized NaN
16:20:05.426:WARN:ListGrid:page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable:hideField(): unable to find field object for field: priorityValue. Taking no action. To add this field use the setFields() method.
16:20:05.458:WARN:Log:************************************layoutchildren NaN
16:20:05.461:WARN:Log:************************************layoutchildren NaN
16:20:05.465:WARN:Log:************************************layoutchildren NaN
16:20:05.466:WARN:Log:************************************layoutchildren NaN
16:20:05.466:WARN:Log:************************************cwResized NaN
16:20:05.467:WARN:Log:************************************layoutchildren 0
16:20:05.481:WARN:Log:************************************layoutchildren 100
16:20:05.489:WARN:Log:************************************layoutchildren 0
16:20:05.515:WARN:Log:************************************layoutchildren NaN
16:20:05.540:WARN:Log:************************************layoutchildren 30
16:20:05.552:WARN:Log:************************************cwResized 30
16:20:05.552:WARN:Log:************************************cwResized 30
16:20:05.573:WARN:drawing:page$$LayoutSpacer21:negative or zero area: height: 3, width: 0, refusing to draw
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.readyToDraw()
    Canvas.draw(_1=>undef)
    Layout.layoutChildren(_1=>"initial draw", _2=>undef, _3=>undef)
    Class.invokeSuper(_1=>null, _2=>"layoutChildren", _3=>undef, _4=>undef, _5=>undef, _6=>undef, _7=>undef, _8=>undef, _9=>undef, _10=>undef)
    Class.Super(_1=>"layoutChildren", _2=>Array[1], _3=>undef)
    [o]VStack.layoutChildren(reason=>"initial draw")
    Layout.drawChildren()
    ** recursed on Canvas.draw

16:20:05.577:WARN:Log:************************************layoutchildren NaN
16:20:05.737:WARN:drawing:page$$LayoutSpacer21:negative or zero area: height: 3, width: 0, refusing to draw
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.readyToDraw()
    Canvas.draw(_1=>undef)
    Layout.layoutChildren(_1=>"initial draw", _2=>undef, _3=>undef)
    Class.invokeSuper(_1=>null, _2=>"layoutChildren", _3=>undef, _4=>undef, _5=>undef, _6=>undef, _7=>undef, _8=>undef, _9=>undef, _10=>undef)
    Class.Super(_1=>"layoutChildren", _2=>Array[1], _3=>undef)
    [o]VStack.layoutChildren(reason=>"initial draw")
    Layout.drawChildren()
    ** recursed on Canvas.draw

16:20:06.305:WARN:drawing:page$content$$content$LayoutSpacer521:negative or zero area: height: 0, width: 50, refusing to draw
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.readyToDraw()
    Canvas.draw(_1=>undef)
    Layout.layoutChildren(_1=>"initial draw", _2=>undef, _3=>undef)
    Layout.drawChildren()
    ** recursed on Canvas.draw

16:20:06.313:WARN:drawing:page$content$$content$LayoutSpacer521:negative or zero area: height: 0, width: 50, refusing to draw
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.readyToDraw()
    Canvas.draw(_1=>undef)
    Layout.layoutChildren(_1=>"initial draw", _2=>undef, _3=>undef)
    Layout.drawChildren()
    ** recursed on Canvas.draw

16:20:06.384:WARN:ResultSet:isc_ResultSet_0 (created by: page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable):Observation error: method goOffline is being observed on object [object Object] but the function appears to have been directly overridden. This may lead to unexpected behavior - to avoid seeing this message in the future, ensure the addMethods() or addProperties() API is used to modify methods on live SmartClient instances, rather than simply reassigning the method name to a new function instance.
16:20:06.453:WARN:Log:****SUPPOSED TO CALL FOCUS ITEM HERE
16:20:06.474:TMR2:WARN:Log:************************************layoutchildren 955
16:20:06.477:TMR2:WARN:Log:************************************layoutchildren 45
16:20:06.477:TMR2:WARN:Log:************************************layoutchildren 45
16:20:06.479:TMR2:WARN:Log:************************************layoutchildren 30
16:20:06.498:TMR2:WARN:Log:************************************cwResized 30
16:20:06.498:TMR2:WARN:Log:************************************cwResized 30
16:20:06.503:TMR2:WARN:Log:************************************layoutchildren 30
16:20:06.519:TMR2:WARN:Log:************************************cwResized 30
16:20:06.519:TMR2:WARN:Log:************************************cwResized 30
16:20:06.524:TMR2:WARN:Log:************************************cwResized 45
16:20:06.524:TMR2:WARN:Log:************************************cwResized 45
16:20:06.526:TMR2:WARN:Log:************************************cwResized 45
16:20:06.527:TMR2:WARN:Log:************************************cwResized 45
16:20:06.527:TMR2:WARN:Log:************************************layoutchildren 29
16:20:06.612:TMR2:WARN:Log:************************************cwResized 29
16:20:06.613:TMR2:WARN:Log:************************************cwResized 29
16:20:06.629:TMR2:WARN:drawing:page$$LayoutSpacer21:negative or zero area: height: 3, width: 0, refusing to draw
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.readyToDraw()
    Canvas.draw(_1=>undef)
    Layout.layoutChildren(_1=>"resized", _2=>undef, _3=>undef)
    Class.invokeSuper(_1=>null, _2=>"layoutChildren", _3=>undef, _4=>undef, _5=>undef, _6=>undef, _7=>undef, _8=>undef, _9=>undef, _10=>undef)
    Class.Super(_1=>"layoutChildren", _2=>Array[1], _3=>undef)
    [o]VStack.layoutChildren(reason=>"resized", -17, 0)
    Canvas.$t1()
    Canvas.moveBy(_1=>0, _2=>0, _3=>undef, _4=>true)
    Canvas.moveTo(_1=>null, _2=>null, _3=>undef, _4=>true)
    Canvas.setRect(_1=>null, _2=>null, _3=>"100%", _4=>"100%", _5=>undef)
    Canvas.$qw(_1=>undef)
    Canvas.pageResize(null, undef)
    ** recursed on Class.invokeSuper

16:20:06.698:TMR2:WARN:drawing:page$$LayoutSpacer21:negative or zero area: height: 3, width: 0, refusing to draw
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.readyToDraw()
    Canvas.draw(_1=>undef)
    Layout.layoutChildren(_1=>"resized", _2=>undef, _3=>undef)
    Class.invokeSuper(_1=>null, _2=>"layoutChildren", _3=>undef, _4=>undef, _5=>undef, _6=>undef, _7=>undef, _8=>undef, _9=>undef, _10=>undef)
    Class.Super(_1=>"layoutChildren", _2=>Array[1], _3=>undef)
    [o]VStack.layoutChildren(reason=>"resized", -17, 0)
    Canvas.$t1()
    Canvas.moveBy(_1=>0, _2=>0, _3=>undef, _4=>true)
    Canvas.moveTo(_1=>null, _2=>null, _3=>undef, _4=>true)
    Canvas.setRect(_1=>null, _2=>null, _3=>"100%", _4=>"100%", _5=>undef)
    Canvas.$qw(_1=>undef)
    Canvas.pageResize(null, undef)
    ** recursed on Class.invokeSuper

16:20:06.700:TMR2:WARN:Log:************************************cwResized 955

                        Comment

                          #13
                          Here's the dev console with RPCManager logging set to Info - I do see the following line:

                          16:34:46.717:INFO:RPCManager:sendQueue[0]: 1 RPCRequest(s); transport: xmlHttpRequest; target: http://localhost:8081/cwf/a?isc_rpc=1&isc_v=v8.2p_2012-05-17&isc_xhr=1

                          Code:
                          16:34:43.826:INFO:Log:initialized
16:34:44.087:WARN:Log:New Class ID: 'Window' collides with ID of existing object with value 'function Window() { [native code] }'.  Existing object will be replaced.
This conflict would be avoided by disabling ISC Simple Names mode.  See documentation for further information.
16:34:44.207:WARN:Log:New Class ID: 'Selection' collides with ID of existing object with value 'function Selection() { [native code] }'.  Existing object will be replaced.
This conflict would be avoided by disabling ISC Simple Names mode.  See documentation for further information.
16:34:44.684:WARN:Log:New Class ID: 'EditPane' collides with ID of existing Class object '[DataSource ID:EditPane]'.  Existing object will be replaced.
This conflict would be avoided by disabling ISC Simple Names mode.  See documentation for further information.
16:34:44.801:INFO:Log:isc.Page is loaded
16:34:45.158:WARN:Log:************************************layoutchildren NaN
16:34:45.159:WARN:Log:************************************cwResized NaN
16:34:45.162:WARN:Log:************************************layoutchildren NaN
16:34:45.162:WARN:Log:************************************cwResized NaN
16:34:45.165:WARN:Log:************************************layoutchildren NaN
16:34:45.165:WARN:Log:************************************cwResized NaN
16:34:45.179:WARN:Log:************************************layoutchildren NaN
16:34:45.180:WARN:Log:************************************cwResized NaN
16:34:45.189:WARN:Log:************************************layoutchildren NaN
16:34:45.190:WARN:Log:************************************cwResized NaN
16:34:45.704:WARN:ListGrid:page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable:hideField(): unable to find field object for field: priorityValue. Taking no action. To add this field use the setFields() method.
16:34:45.735:WARN:Log:************************************layoutchildren NaN
16:34:45.740:WARN:Log:************************************layoutchildren NaN
16:34:45.741:WARN:Log:************************************layoutchildren NaN
16:34:45.742:WARN:Log:************************************layoutchildren NaN
16:34:45.742:WARN:Log:************************************cwResized NaN
16:34:45.743:WARN:Log:************************************layoutchildren 0
16:34:45.758:WARN:Log:************************************layoutchildren 100
16:34:45.767:WARN:Log:************************************layoutchildren 0
16:34:45.794:WARN:Log:************************************layoutchildren NaN
16:34:45.817:WARN:Log:************************************layoutchildren 30
16:34:45.830:WARN:Log:************************************cwResized 30
16:34:45.830:WARN:Log:************************************cwResized 30
16:34:45.849:WARN:drawing:page$$LayoutSpacer21:negative or zero area: height: 3, width: 0, refusing to draw
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.readyToDraw()
    Canvas.draw(_1=>undef)
    Layout.layoutChildren(_1=>"initial draw", _2=>undef, _3=>undef)
    Class.invokeSuper(_1=>null, _2=>"layoutChildren", _3=>undef, _4=>undef, _5=>undef, _6=>undef, _7=>undef, _8=>undef, _9=>undef, _10=>undef)
    Class.Super(_1=>"layoutChildren", _2=>Array[1], _3=>undef)
    [o]VStack.layoutChildren(reason=>"initial draw")
    Layout.drawChildren()
    ** recursed on Canvas.draw

16:34:45.854:WARN:Log:************************************layoutchildren NaN
16:34:46.023:WARN:drawing:page$$LayoutSpacer21:negative or zero area: height: 3, width: 0, refusing to draw
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.readyToDraw()
    Canvas.draw(_1=>undef)
    Layout.layoutChildren(_1=>"initial draw", _2=>undef, _3=>undef)
    Class.invokeSuper(_1=>null, _2=>"layoutChildren", _3=>undef, _4=>undef, _5=>undef, _6=>undef, _7=>undef, _8=>undef, _9=>undef, _10=>undef)
    Class.Super(_1=>"layoutChildren", _2=>Array[1], _3=>undef)
    [o]VStack.layoutChildren(reason=>"initial draw")
    Layout.drawChildren()
    ** recursed on Canvas.draw

16:34:46.598:WARN:drawing:page$content$$content$LayoutSpacer521:negative or zero area: height: 0, width: 50, refusing to draw
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.readyToDraw()
    Canvas.draw(_1=>undef)
    Layout.layoutChildren(_1=>"initial draw", _2=>undef, _3=>undef)
    Layout.drawChildren()
    ** recursed on Canvas.draw

16:34:46.604:WARN:drawing:page$content$$content$LayoutSpacer521:negative or zero area: height: 0, width: 50, refusing to draw
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.readyToDraw()
    Canvas.draw(_1=>undef)
    Layout.layoutChildren(_1=>"initial draw", _2=>undef, _3=>undef)
    Layout.drawChildren()
    ** recursed on Canvas.draw

16:34:46.700:WARN:ResultSet:isc_ResultSet_0 (created by: page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable):Observation error: method goOffline is being observed on object [object Object] but the function appears to have been directly overridden. This may lead to unexpected behavior - to avoid seeing this message in the future, ensure the addMethods() or addProperties() API is used to modify methods on live SmartClient instances, rather than simply reassigning the method name to a new function instance.
16:34:46.717:INFO:RPCManager:sendQueue[0]: 1 RPCRequest(s); transport: xmlHttpRequest; target: http://localhost:8081/cwf/a?isc_rpc=1&isc_v=v8.2p_2012-05-17&isc_xhr=1
16:34:46.780:WARN:Log:****SUPPOSED TO CALL FOCUS ITEM HERE
16:34:46.792:TMR6:WARN:Log:************************************layoutchildren 955
16:34:46.794:TMR6:WARN:Log:************************************layoutchildren 45
16:34:46.795:TMR6:WARN:Log:************************************layoutchildren 45
16:34:46.797:TMR6:WARN:Log:************************************layoutchildren 30
16:34:46.818:TMR6:WARN:Log:************************************cwResized 30
16:34:46.818:TMR6:WARN:Log:************************************cwResized 30
16:34:46.823:TMR6:WARN:Log:************************************layoutchildren 30
16:34:46.840:TMR6:WARN:Log:************************************cwResized 30
16:34:46.840:TMR6:WARN:Log:************************************cwResized 30
16:34:46.845:TMR6:WARN:Log:************************************cwResized 45
16:34:46.845:TMR6:WARN:Log:************************************cwResized 45
16:34:46.847:TMR6:WARN:Log:************************************cwResized 45
16:34:46.847:TMR6:WARN:Log:************************************cwResized 45
16:34:46.848:TMR6:WARN:Log:************************************layoutchildren 29
16:34:46.931:TMR6:WARN:Log:************************************cwResized 29
16:34:46.931:TMR6:WARN:Log:************************************cwResized 29
16:34:46.947:TMR6:WARN:drawing:page$$LayoutSpacer21:negative or zero area: height: 3, width: 0, refusing to draw
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.readyToDraw()
    Canvas.draw(_1=>undef)
    Layout.layoutChildren(_1=>"resized", _2=>undef, _3=>undef)
    Class.invokeSuper(_1=>null, _2=>"layoutChildren", _3=>undef, _4=>undef, _5=>undef, _6=>undef, _7=>undef, _8=>undef, _9=>undef, _10=>undef)
    Class.Super(_1=>"layoutChildren", _2=>Array[1], _3=>undef)
    [o]VStack.layoutChildren(reason=>"resized", -17, 0)
    Canvas.$t1()
    Canvas.moveBy(_1=>0, _2=>0, _3=>undef, _4=>true)
    Canvas.moveTo(_1=>null, _2=>null, _3=>undef, _4=>true)
    Canvas.setRect(_1=>null, _2=>null, _3=>"100%", _4=>"100%", _5=>undef)
    Canvas.$qw(_1=>undef)
    Canvas.pageResize(null, undef)
    ** recursed on Class.invokeSuper

16:34:47.015:TMR6:WARN:drawing:page$$LayoutSpacer21:negative or zero area: height: 3, width: 0, refusing to draw
    Class.getStackTrace(_1=>undef, _2=>undef, _3=>undef, _4=>undef)
    Canvas.readyToDraw()
    Canvas.draw(_1=>undef)
    Layout.layoutChildren(_1=>"resized", _2=>undef, _3=>undef)
    Class.invokeSuper(_1=>null, _2=>"layoutChildren", _3=>undef, _4=>undef, _5=>undef, _6=>undef, _7=>undef, _8=>undef, _9=>undef, _10=>undef)
    Class.Super(_1=>"layoutChildren", _2=>Array[1], _3=>undef)
    [o]VStack.layoutChildren(reason=>"resized", -17, 0)
    Canvas.$t1()
    Canvas.moveBy(_1=>0, _2=>0, _3=>undef, _4=>true)
    Canvas.moveTo(_1=>null, _2=>null, _3=>undef, _4=>true)
    Canvas.setRect(_1=>null, _2=>null, _3=>"100%", _4=>"100%", _5=>undef)
    Canvas.$qw(_1=>undef)
    Canvas.pageResize(null, undef)
    ** recursed on Class.invokeSuper

16:34:47.019:TMR6:WARN:Log:************************************cwResized 955
16:34:47.049:XRP7:INFO:RPCManager:transaction 0 arrived after 331ms
16:34:47.054:XRP7:INFO:RPCManager:rpcResponse(page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable$ds_fetch)[fetch]: result: 10 records[status=0]

                          Comment

                            #14
                            Yes, that request and response appear normal.

                            From the logs, this jumps out as odd:

                            16:34:46.700:WARN:ResultSet:isc_ResultSet_0 (created by: page$content$queueStatusSummaryUi$$content$FormFrameQueueUI$resultFrame$queueStatusSummaryResultTable):Observation error: method goOffline is being observed on object [object Object] but the function appears to have been directly overridden. This may lead to unexpected behavior - to avoid seeing this message in the future, ensure the addMethods() or addProperties() API is used to modify methods on live SmartClient instances, rather than simply reassigning the method name to a new function instance.
                            It suggests you've done something like isc.goOffline = function () ... However it doesn't suggest a way that you could cause this odd error message from Chrome.

                            At this point you're saying that Chrome is reporting an HTTP error on a request that neither Chrome nor our tools is reporting as existing at all, we can't really speculate as to a cause for something like that so you'll need to try to isolate the code causing the problem so that we can reproduce it.

                            Comment

                              #15
                              I've asked about that goOffline message before - I cannot find anywhere in our product code that contains that string so I have absolutely no idea where it is coming from.

                              I tried creating a testcase for this issue but I can't even get it to load in Chrome. My fetch call works fine in Firefox. I placed my html file under smartclientSDK and opened it using Chrome. Once the page is loaded, click on FETCH ME!. I get the error "Error: server returned invalid JSON response". Is there anything wrong with this sample that you could see?

                              Code:
                              <HTML><HEAD><TITLE>Transport Issue</TITLE>

    
</HEAD>
<body class="pageBackground" marginwidth="0" marginheight="0" topmargin="0" leftmargin="0" scroll="no" style="overflow:hidden">

<SCRIPT>var isomorphicDir = "isomorphic/"</SCRIPT>
    <SCRIPT>var isomorphicDir = "isomorphic/"</SCRIPT>
    <SCRIPT SRC=isomorphic/system/modules/ISC_Core.js></SCRIPT>
    <SCRIPT SRC=isomorphic/system/modules/ISC_Foundation.js></SCRIPT>
    <SCRIPT SRC=isomorphic/system/modules/ISC_Containers.js></SCRIPT>
    <SCRIPT SRC=isomorphic/system/modules/ISC_Grids.js></SCRIPT>
    <SCRIPT SRC=isomorphic/system/modules/ISC_Forms.js></SCRIPT>
    <SCRIPT SRC=isomorphic/system/modules/ISC_DataBinding.js></SCRIPT>
	<SCRIPT SRC=isomorphic/skins/Enterprise/load_skin.js></SCRIPT>

<SCRIPT>

isc.DataSource.create({
ID:"countryDS",
dataFormat: "json",
dataURL:"isomorphic/system/reference/inlineExamples/grids/data/countryData.json",
fields:[{name:"countryCode"},{name: "countryName"}, {name: "capital"}]

});


isc.ListGrid.create({
    ID: "countryList",
    width:500, height:224, alternateRecordStyles:true, showAllRecords:true,
    dataSource: countryDS,
    autoFetchData: false
});


isc.Button.create({
title:"FETCH ME!",top:300,
click: function(){
//countryList.invalidateCache();
      countryList.fetchData(null, null,
            {showPrompt:false});
}

})

</script>
</BODY>
</html>

                              Comment

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