PhantomJS / Chrome crash on rebuild

[ghost]

I'm submitting a bug report

Webpack version:
1.13.1

Webpack Karma version:
1.8.0

Karma version:
1.2.0

Please tell us about your environment:
OSX 10.11.6
Node v4.4.6
NPM v3.10.2

Browser: [Phantom 1.9 | Chrome 53]

Current behavior:
Tests run correctly the first time. When changing a file (actually just re-saving it in order to trigger a rebuild), the browser will crash

Expected/desired behavior:
Tests should run correctly and not crash the browser.

• If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem along with a gist/jsbin of your webpack configuration.
  This is a rather large project, but I will take a look at reproducing.

Here is some output:

> karma start karma-unit.js


webpack: bundle is now VALID.
webpack: bundle is now INVALID.
12 08 2016 15:17:02.379:WARN [karma]: No captured browser, open http://localhost:9876/

WARNING in ./~/ws/lib/BufferUtil.js
Module not found: Error: Cannot resolve module 'bufferutil' in /path/to/node_modules/ws/lib
 @ ./~/ws/lib/BufferUtil.js 10:19-40

WARNING in ./~/ws/lib/Validation.js
Module not found: Error: Cannot resolve module 'utf-8-validate' in /path/to/node_modules/ws/lib
 @ ./~/ws/lib/Validation.js 10:19-44
webpack: bundle is now VALID.
12 08 2016 15:17:02.391:INFO [karma]: Karma v1.2.0 server started at http://localhost:9876/
12 08 2016 15:17:02.391:INFO [launcher]: Launching browser Chrome with unlimited concurrency
12 08 2016 15:17:02.495:INFO [launcher]: Starting browser Chrome
12 08 2016 15:17:03.243:INFO [Chrome 53.0.2785 (Mac OS X 10.11.6)]: Connected on socket /#zPam68nUzsTwLfizAAAA with id 29119689
/* TRUNCATED */
Chrome 53.0.2785 (Mac OS X 10.11.6): Executed 1899 of 1899 (0 FAILED) (42.5 secs / -258619 mins 53.673 secs) <-- this is kinda weird, not sure why this happens.

=============================== Coverage summary ===============================
Statements   : 92.22% ( 9500/10302 ), 230 ignored
Branches     : 86.71% ( 3574/4122 ), 473 ignored
Functions    : 85.67% ( 2074/2421 ), 19 ignored
Lines        : 90.07% ( 7030/7805 )
================================================================================
webpack: bundle is now INVALID.

WARNING in ./~/ws/lib/BufferUtil.js
Module not found: Error: Cannot resolve module 'bufferutil' in /path/to/node_modules/ws/lib
 @ ./~/ws/lib/BufferUtil.js 10:19-40

WARNING in ./~/ws/lib/Validation.js
Module not found: Error: Cannot resolve module 'utf-8-validate' in path/to/ws/lib
 @ ./~/ws/lib/Validation.js 10:19-44
webpack: bundle is now VALID.
Chrome 53.0.2785 (Mac OS X 10.11.6): Executed 0 of 0 ERROR (0.021 secs / 0 secs)

=============================== Coverage summary ===============================
Statements   : 100% ( 0/0 )
Branches     : 100% ( 0/0 )
Functions    : 100% ( 0/0 )
Lines        : 100% ( 0/0 )
================================================================================

Potentially related issues #49, #66

FWIW, I have tried some of the suggestions in these issues with no luck. I have also tried use the beforeMiddleware, although it doesn't seem to be doing anything (as far as I can tell).

Thanks in advance.

[ghost]

I don't think this is a karma-webpack issue, looks like it might be karma. Closing