Patch: support Ajax functions for URI schemes other than http:, https: and file:

[djc]

Gecko (and probably other browsers) can support XMLHttpRequest over URI schemes other than HTTP and HTTPS.

jQuery already takes advantage of this to support file:. The enclosed patch allows the jQuery Ajax functions to operate over any URI scheme which is supported by the browser.

This is particularly useful for people (like me) who are using jQuery to develop Firefox extensions, as it is useful to be able to perform Ajax functions on chrome: URIs.

[dmethvin]

So basically, check for http/https rather than file protocol.

[snover]

We don’t support anything other than HTTP in Core; if you want to use them, you are responsible for creating your own transport.