Source maps does not work

[mmrath]

Please provide us with the following information:

1. OS? Windows 7, 8 or 10. Linux (which distribution). Mac OSX (Yosemite? El Capitan?)
   OSX El Captain, Windows 7
2. Versions. Please run ng --version. If there's nothing outputted, please run
   in a Terminal: node --version and paste the result here:

latest master

1. Repro steps. Was this an app that wasn't created using the CLI? What change did you
   do on your code? etc.

https://github.com/mmrath/cli-proxy-test.git
Keep break points in app.component.ts from chrome. Chrome does not stop on the right place.

1. The log given by the failure. Normally this include a stack trace and some
   more information.
2. Mention any other details that might be useful.

---

Thanks! We'll be in touch soon.

[filipesilva]

@TheLarkInn should your sourcemap solution have fixed this scenario?

[TheLarkInn]

This is a chrome issue I believe @mmrath can you do me a favor and try this in Chrome Canary just to make sure it's the issue I believe it is.

[mmrath]

@TheLarkInn I tried it in Chrome Canary, the behaviour is same. It still does not work.

Update: Chrome Version 54.0.2811.2 canary (64-bit)

[mmrath]

This could be related to webpack/webpack#2145

[TheLarkInn]

Yup that was the issue I was looking for. I will be speaking with a few folks from Chrome next week (in the context of that issue and other stuff). I'll make sure to keep track of this and update accordingly.

[masaanli]

I can confirm this, having the same issue.

It only debugs if i add a debugger; in my code ;)

[mmrath]

@TheLarkInn Does not look like this issue is resolved. I have seen the commit #1659 . I took the latest master and created a new project added material2. Now ng serve is failing.

If I change to 'cheap-module-source-map' from 'source-map', ng serve is OK, but debugging does not work.

Sample repo to reproduce is at https://github.com/mmrath/test-cli-source-map.git

ng serve throws the following error with latest master. I see the same error even on osx

TypeError: Cannot read property 'substr' of undefined
at Function. (C:\Projects\angular-cli\node_modules\webpack-sources\node_modules\source-map\lib\source-node.js:95:30)
at Array.forEach (native)
at SourceMapConsumer_eachMapping as eachMapping
at Function.SourceNode_fromStringWithSourceMap as fromStringWithSourceMap
at SourceMapSource.node (C:\Projects\angular-cli\node_modules\webpack-sources\lib\SourceMapSource.js:42:20)
at ReplaceSource.node (C:\Projects\angular-cli\node_modules\webpack-sources\lib\ReplaceSource.js:66:29)
at CachedSource.node (C:\Projects\angular-cli\node_modules\webpack-sources\lib\CachedSource.js:12:23)
at C:\Projects\angular-cli\node_modules\webpack-sources\lib\ConcatSource.js:40:49
at Array.map (native)
at ConcatSource.node (C:\Projects\angular-cli\node_modules\webpack-sources\lib\ConcatSource.js:39:60)
at C:\Projects\angular-cli\node_modules\webpack-sources\lib\ConcatSource.js:40:49
at Array.map (native)
at ConcatSource.node (C:\Projects\angular-cli\node_modules\webpack-sources\lib\ConcatSource.js:39:60)
at C:\Projects\angular-cli\node_modules\webpack-sources\lib\ConcatSource.js:40:49
at Array.map (native)
at ConcatSource.node (C:\Projects\angular-cli\node_modules\webpack-sources\lib\ConcatSource.js:39:60)
at C:\Projects\angular-cli\node_modules\webpack-sources\lib\ConcatSource.js:40:49
at Array.map (native)
at ConcatSource.node (C:\Projects\angular-cli\node_modules\webpack-sources\lib\ConcatSource.js:39:60)
at ConcatSource.proto.sourceAndMap (C:\Projects\angular-cli\node_modules\webpack-sources\lib\SourceAndMapMixin.js:28:18)
at CachedSource.sourceAndMap (C:\Projects\angular-cli\node_modules\webpack-sources\lib\CachedSource.js:51:28)
at Compilation. (C:\Projects\angular-cli\node_modules\webpack\lib\SourceMapDevToolPlugin.js:57:32)

[masaanli]

Source maps are working after your commit @TheLarkInn at least at my place.
Here they are working again in Firefox and Chrome an IE. Before it wasn't working in the 3 Browsers.

[mmrath]

@masaanli any chance you can try the repo I mentioned in the previous comments. It would be good to if it is just me. I tried in on both my windows and Mac