By using the F12 developer console in IE11, I have noticed that Trakcing Protection does not block requests when the initiator is one of the following:
- XMLHttpRequest
- CSS, e.g. background-image: url(<some url here>)
- Flash
I'm not sure if that's the TPL implementation "working as designed" because the MS W3C submission describes the blocking of requests for resources in general, as opposed to bloking only requests from html-code in webpages (e.g. src-property in tags like script, frame, img, etc), which is what TPL does at the moment.
I'm using IE11 build 11.0.9600 (Windows 8.1). Is there a way to post a suggestion to the IE dev team, to revise the TPL implementation in IE to include URI-blocking in requests made from Flash, XMLHttpRequest and CSS?