Client-side RPC Manager bug (JS client hangs) when Unicode linefeed in server data

[Blama]

Hi Isomorphic,

I found a severe (but likely easy to fix) bug in clientside RPC manager. One of my users entered (more likely: copy&pasted) some text into a "text" field. This texts leads to

10:14:20.057:XRP8:WARN:RPCManager:Error evaling structured RPC response: unterminated string literal response text: .....
10:14:20.119:XRP8:WARN:ResultSet:isc_ResultSet_5 (dataSource: employees, created by: isc_ListGrid_4):Bad data returned, ignoring: "//isc_RPCResponseStart-->.....

in the Developer Console. The request in the RPC tab itself is successful.

Looking at the data I found this to be related to Unicode LINE SEPARATOR (hex E280A8) in the data. I entered the same character in the DB (I used Oracle DB and Oracle SQL Developer to copy&paste) in BuiltInDS and tried to load it with the same result. Should also work for HSQLDB if you manage to store the value in the DB.

Related: If you try to copy&paste this character into a canEdit(true)-ListGrid and leave the row to save, you'll get the JS exception from the attached screenshot.


This happens in SNAPSHOT_v10.1d_2015-10-07 as well as in v10.0p_2015-10-08/PowerEdition.
In Chrome 45, loading the data also renders the tab unresponsive for me (not the case in FF26).

Best regards
Blama

[Blama]

To further clarify:

• On load, the ListGrid does not display any data because of the "Bad data returned, ignoring"
• The error in the screenshot on edit&paste&save was a DevMode error message

[Isomorphic]

We'll take a look and get back to you.
Thanks
Isomorphic Software

[Isomorphic]

Agreed that these should be escaped - we have patched SC 10.0p/SGWT 5.0p as well ass SC 10.1d /SGWT 5.1d. The patch will appear in tomorrow's (October 13) build. Thanks for the report!

[Blama]

Hi Isomorphic,

this is fixed for me, now.

Thank you & Best regards
Blama