Change behaviour of links to files in text areas

Summary: If you place a link to a file that is not accessible for the web player service in a text area, the whole text area can take very long to render. This should be changed so that the text area renders instantly (but the link does not work).

Details:

If you add a link to a file in a text area and this file is not accessible from a specific machine running Spotfire (e.g. the WebPlayer) rendering the text area can take 10-20min. Eventually rendering completes w/o any errors (just the link won't work) but effectively this makes the whole analysis unusable for certain users.

The problem seems to be related to the HTML Sanitizer (see Case #02203939) but disabling the Sanitizer or inserting complicated Java Script based workarounds in all text areas with file links are not really good options.

It would be great if the rendering time could be made independent from accessibility of file links even if the Sanitizer is switched on.