[jira] [Commented] (CB-12284) Source map source file not found in Chrome

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CB-12284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15765931#comment-15765931 ] 

ASF GitHub Bot commented on CB-12284:
-------------------------------------

GitHub user TimBarham opened a pull request:

    https://github.com/apache/cordova-lib/pull/512

    CB-12284 Include project root as additional root for static router

    ### Platforms affected
    All
    
    ### What does this PR do?
    With this change, cordova-serve includes the project root as an additional root for static routing. This is the final piece a middleware, so will only be utilized when a file isn't found through other means (the default static routing which points to the platform root, or other middleware that may have been injected by a third party).
    
    This can be useful in cases where source files that have been transpiled (such as TypeScript files) are located under the project root on a path that mirrors the the transpiled file's path under the platform root, and is pointed to by a map file (otherwise when debugging in a browser, the browser won't be able to find the original source file).
    
    ### What testing has been done on this change?
    Verified is resolved the problem reported in the bug, and lets you debug using original TypeScript sources in a TypeScript project, as long as the path to the TypeScript source relative to the project root mirrors the path to the generated JavaScript and map file relative to the www folder.
    
    ### Checklist
    - [x] [Reported an issue](http://cordova.apache.org/contribute/issues.html) in the JIRA database
    - [x] Commit message follows the format: "CB-3232: (android) Fix bug with resolving file paths", where CB-xxxx is the JIRA ID & "android" is the platform affected.
    - [ ] Added automated test coverage as appropriate for this change.


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/TimBarham/cordova-lib CB-12284

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/cordova-lib/pull/512.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #512
    
----
commit 84fa8e39b22252381ed4baa6868ff6f22b7a48e2
Author: TimBarham <ti...@microsoft.com>
Date:   2016-12-21T02:18:44Z

    CB-12284 Include project root as additional root for static router
    
    This can be useful in cases where source files that have been transpiled (such as TypeScript files) are located under the project root on a path that mirrors the the transpiled file's path under the platform root, and is pointed to by a map file (otherwise when debugging in a browser, the browser won't be able to find the original source file).

----


> Source map source file not found in Chrome
> ------------------------------------------
>
>                 Key: CB-12284
>                 URL: https://issues.apache.org/jira/browse/CB-12284
>             Project: Apache Cordova
>          Issue Type: Improvement
>          Components: CordovaServe
>    Affects Versions: Master
>            Reporter: Tim Barham
>            Assignee: Tim Barham
>             Fix For: Master
>
>
> If you have a Cordova project that does some sort of transpiling (for example, TypeScript -> JavaScript) and the source files aren't under the www folder, the original source files can't be found when debugging in a browser.
> For example, you might have a project with these files:
> scripts/foo.ts
> www/scripts/foo.js
> www/scripts/foo.js.map
> The map file will likely link back to the original ts file as {{../../scripts/foo.ts}}
> Launch the project in a browser ({{cordova run browser}}), the path to the original ts file is invalid (in the context of the server) and the file isn't found.



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