Issue 2550: 'Unresponsive script' warning when diffing files in Firefox
Status:  New
Owner: ----
Reported by saxo...@gmail.com, Mar 12, 2014
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***** NOTE: THIS BUG TRACKER IS FOR GERRIT CODE REVIEW *****
***** DO NOT SUBMIT BUGS FOR CHROME, ANDROID, INTERNAL *****
***** ISSUES WITH YOUR COMPANY'S GERRIT SETUP, ETC.    *****
***** THOSE ISSUE BELONG IN DIFFERENT ISSUE TRACKERS!  *****
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Affected Version: 2.8.1

What steps will reproduce the problem?
1.Open a change in Firefox (tested w/ 21.0 and 27.0.1, Windows 7 x64) 
2.Click a file to review
3.Observe the attached image

What is the expected output? What do you see instead?

I expect to see the diff screen. Instead I see 'Working' for several seconds followed by the attached dialog. Clicking 'Continue' on the dialog does eventually load the diff page.

Please provide any additional information below.

This is not happening for all files in all changes. For affected changes, it happens regardless of the Change screen or Diff settings (SxS, Unified, highlighting, context, etc).

Once the diff is loaded, changing the diff type via the Differences top menu item will also trigger the window.

We have observed this in the following configurations:

Gerrit 2.8.1 w/ embedded Jetty
CentOS 6.5 x86_64
Apache 2.2.15
MySQL 5.1.73

Gerrit 2.8.2 w/ embedded Jetty
CentOS 6.5 x86_64
Apache 2.2.26
MySQL 5.1.73
unresponsive.png
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May 5, 2014
#1 dholms...@gmail.com
I am having the same issue with:

    Gerrit  2.8.3
    Firefox 29.0
    Ubuntu  12.04

It doesn't happen for all files and the number of changes seem to be related.  I.e. I can open the Side-by-Side diff for a change of size +26, -6 but I cannot open one of size +49, -4.