Source Mapper Application Chrome

A utility to get the original source code from a source map

Latest Version

Version

1.2.5

Update

April 14, 2013

Size

142KiB

Developer

ryansylvestre.com

Source Mapper Application

What are source maps?
http://www.html5rocks.com/en/tutorials/developertools/sourcemaps

Why
This works well in conjunction with JavaScript error capture. However you will need both line and column numbers. This can be difficult with a simple window.onerror handler as that does not provide the column information.

There are various libraries that will wrap native functions with try/catches that could provide the column from error.stack. Use at your own risk (not sure how I feel about them)

In my case (enterprise) we have mostly IE8 users at the moment, during window.onerror it is possible to either A. Walk to callee and build a stack or B. Use window.error.errorcharacter to capture the column number. This is what I am going to be doing for the time being.

Tested with
Source Map Version 3
JavaScript source files

Source: https://github.com/RyanSylvestre/sourceMapper
Link to store: https://chrome.google.com/webstore/detail/enenhalmnhnpofkecebdmgnmmhfkhcpb

Source Manifest.json

{ "app": {"launch": {"local_path": "index.html"}}, "update_url": "https://clients2.google.com/service/update2/crx", "description": "A utility to get the original source code from a source map", "name": "Source Mapper", "permissions": [ "http://*/*", "https://*/*" ], "minimum_chrome_version": "20", "icons": { "48": "img/icon_48.png", "128": "img/icon_128.png", "16": "img/icon_16.png" }, "manifest_version": 2, "version": "1.2.5"}

Source Mapper

A utility to get the original source code from a source map

Latest Version

Source Mapper Application

Source Manifest.json

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