Partial Expressions in require call

[alanbentley]

I'm submitting a bug report

Webpack version:
3.10.0

Webpack Karma version:
2.0.8/9

Karma version:
0.12.37

Please tell us about your environment:
OSX 10.12.6

Browser:
Phantom

Current behavior:
partial expressions in require statements were working fine in version 2.0.5-7 but are now causing 404 responses

Expected/desired behavior:
Asynchronously load module

• 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.

require(['views/' + view], function(view) {

works fine in Use karma-webpack 2.0.7 however using karma-webpack 2.0.8-2.0.9:

WARN [web-server]: 404: /var/folders/qr/vvd9_2fx45d5pfgfbb8qhbmh0000gn/T/_karma_webpack_/0.bundle.js

Changing the dependancy to a hard coded string enables the module to be found.

[alanbentley]

Had a quick look and looks like the issue is in 0616dda with the new regex:

urlRegex: new RegExp('^' + os.tmpdir() + '\/_karma_webpack_\/.*/')

a quick test by changing this to the following resolves finding the module:

urlRegex: /.*\/_karma_webpack_\/.*/,

[andrexx]

Apparently broken the possibility of loading lazy load bundles. Got a similar issue on windows with angular application. As workaround pin karma-webpack version to 2.0.6

Chrome 63.0.3239 (Windows 10 0.0.0): Executed 73 of 318 SUCCESS (0 secs / 0.109 secs)
ERROR: 'Unhandled Promise rejection:', 'Loading chunk 0 failed.', '; Zone:', 'ProxyZone', '; Task:', 'Promise.then', ';
Value:', Error{__zone_symbol__currentTask: ZoneTask{_zone: Zone{_properties: ..., _parent: ..., _name: ..., _zoneDelegate: ...}, runCount: 0,
_zoneDelegates: null, _state: 'notScheduled', type: 'microTask', source: 'Promise.then',
data: undefined, scheduleFn: undefined, cancelFn: null, callback: function () { ... }, invoke: function () { ... }}}, 'Error: Loading chunk 0 failed.
    at HTMLScriptElement.onScriptComplete 
...

[rodmax]

Hi guys could you verify fix from #293
Quick steps to setup env

git clone [email protected]:rodmax/karma-webpack.git
cd karma-webpack
git checkout fix-url-regex-for-custom-file-handler
npm i 
npm link
npm i [email protected]   # you should install peer dependency for using "npm link", you may choose your version of webpack instead 3.6.0
npm run build  # after it you should see "js" files in ./lib dir

cd path/to/you-repo
npm link karma-webpack  # mount my pull-requested version
npm run tests # run your tests

[alanbentley]

Sorry for the delay - I can confirm that fix-url-regex-for-custom-file-handler fixes my issue

[andrexx]

Unfortunately I keep getting an error "Error: Loading chunk 0 failed.".
I'll try to create a minimal reproducible example.

[michael-ciniawsky]

Fix released in v2.0.10 🎉 Please try it out. If still regressions please open a new issue :)