UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/50.0.2661.102 Chrome/50.0.2661.102 Safari/537.36

Steps to reproduce the problem:
1. Open "Devtools" -> "Settings" page -> "Workspace" link
2. Add mapping folder from where files being served, see picture "workspace-folder.png".
3. Map file to filesystem, see "map-to-filesystem.png".
4. Edit file and save changes, see "modified-file.png".

P.S.

exact mapping in "workspace-settings.png" listed below

Folder:
file:///home/shepel/feedback-admin-backend/vendor/xircl/xircl-feedback-bundle/Xircl/XirclFeedbackBundle/Resources/public/js

URL prefix:
http://feedback-admin-backend.dev/bundles/xirclxirclfeedback/js/modules/settings/settings/AdvancedSettingsCntl.js?v.1.7.3/

Folder path:
/modules/settings/settings/AdvancedSettingsCntl.js/

What is the expected behavior?
Applied file changes goes on disck

What went wrong?
Applied file changes preserved in memory

Did this work before? N/A 

Chrome version: 50.0.2661.102  Channel: n/a
OS Version: Ubuntu 14.04.3 LTS
Flash Version: Shockwave Flash 11.2 r999
 

Deleted: workspace-folder.png 60.9 KB

	workspace-folder.png 60.9 KB View Download

Deleted: map-to-filesystem.png 262 KB

	map-to-filesystem.png 262 KB View Download

Deleted: modified-file.png 259 KB

	modified-file.png 259 KB View Download

Deleted: workspace-settings.png 90.6 KB

	workspace-settings.png 90.6 KB View Download