Grid shows loading message for long time even after server response.

[bits4u]

I have a list grid inside drop-down that I populate on click of select element. The server is sending the response within 4 seconds but the grids keep on showing loading message for around 16 seconds. In browser's network tab the http request is responded by server in 4 seconds only. I am unable to figure out that why this client side rendering is taking around 12 seconds. I am unable to find any "on load listeners" for grid. My grid can have maximum of 4000 records. Kindly suggest.

Below are the details of request and response :-

GENERAL:-
Request URL:https://<IP>/MyURL?_csrf=f93e128e-ef88-45e9-ade4-5fa9f7b59031&isc_rpc=1&isc_v=v11.0p_2017-05-26&isc_xhr=1
Request Method:POST
Status Code:200
Remote Address:10.90.10.103:443
Referrer Policy:no-referrer-when-downgrade



Response Headers:-
view source
Cache-Control:no-cache
Content-Encoding:gzip
Content-Type:text/plain;charset=UTF-8
Date:Mon, 10 Jul 2017 07:51:38 GMT
Expires:Mon, 10 Jul 2017 07:51:34 GMT
Pragma:no-cache
Server:
Strict-Transport-Security:max-age=31536000 ; includeSubDomains
Transfer-Encoding:chunked
Vary:Accept-Encoding
X-Content-Type-Options:nosniff
X-FRAME-OPTIONS:SAMEORIGIN
X-FRAME-OPTIONS:SAMEORIGIN
X-XSS-Protection:1; mode=block

Request Headers:-
view source
Accept:*/*
Accept-Encoding:gzip, deflate, br
Accept-Language:en-US,en;q=0.8
Connection:keep-alive
Content-Length:1591
Content-Type:application/x-www-form-urlencoded; charset=UTF-8
Cookie:XSRF-TOKEN=f93e128e-ef88-45e9-ade4-5fa9f7b59031; JSESSIONID=334BDB595F9C909C7F57975A9B3460CE; isc_cState=ready; GLog=%7B%0A%20%20%20%20trackRPC%3Afalse%0A%7D
Host:10.90.10.103
Origin:https://<IP>
Referer:https://<IP>/<URL>
User-Agent:Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36
Query String Parameters
view source
view URL encoded
_csrf:f93e128e-ef88-45e9-ade4-5fa9f7b59031
isc_rpc:1
isc_v:v11.0p_2017-05-26
isc_xhr:1

Form Data:-
view source
view URL encoded
isc_tnum:7
_transaction: some transaction tags

PFB the screenshot of server response.


Kindly suggest.

[Isomorphic]

This isn't enough information to even begin to guess at the problem - we don't have the DataSource definition, any description of the actual data sent, and no profiling information.

If you suspect a framework issue, please put together a minimal, ready-to-run test case demonstrating the issue.

Otherwise, for assistance with tuning your code, consider our consulting services.