Moved reference to throbber.gif to CSS file.
Fix potential self XSS in request url.
Merge pull request #541 from STRML/master

Fix self XSS in request url.
Merge pull request #540 from bezhermoso/throbber_img_reference

Moved reference to throbber.gif to CSS file.
rebuilt
Remove inline event handlers from resource template.

This allows us to use a strict CSP on explorer pages.