…g invalid media types as type "all"
…. Added CSS test cases.
…extra object detection to prevent error
…spond.proxy.gif remains relative instead of http://example.com/respond.proxy.gif. This trickery resolves that issue.
… optional external proxy plugin can fix it up in a second pass.
This change makes Respond check an expando property on the stylesheet to see if its text is stored there before attempting to retrieve it from the cache/server. This check eases compatibility with other CSS-parsing frameworks, such as Selectivizr, which now populates this expando by default. This may also introduce a simple tie-in for scripts that perform cross-domain workarounds for fetching CSS.
…do property. Selectivizr script must be run first.