Handling failure of XMLHttpRequest in IE over network share

[jayfresh]

When using Internet Explorer (on Windows at least) 6 or 7, if you try to open a TiddlyWiki over a network share and then perform an operation that involves making a XMLHttpRequest (XHR) to a remote server e.g. ImportTiddlers?, the XHR will fail.

This is not a problem for Firefox 2 and 3 (untested for other browsers on Windows), so I think we could do people a good service by adding something to the XHR library that checks for this; or at the very least, we could suggest this as a reason why the XHR would fail, akin to the suggestions that appear when saving fails.

[FND]

N.B.: This might be related to - possibly even a duplicate of - #681.

[jayfresh]

After prompting by MartinBudden?, I had a try to see if this problem still occurs with the new core, which is using jQuery.

Sadly, the xhr call still fails on this line in jQuery:

   xhr.open(type, s.url, s.async);

The errors I've seen are: "Unknown name", "Unspecified error" and "Permission denied". "Unknown name" is the most frequent.

I've had a good look round the web and I can't find any helpful information about "unknown name".

[MartinBudden]

Milestone 2.6.2 deleted