HTML files on XProc output ports should be given an "html" file extension

[josteinaj]

I've seen several people downloading the report zip, then renaming the report xml to html before opening it in a browser.

• either; detect the xhtml namespace in the root element of the document on the output port
• or; check the media-type on the p:output XProc element

...then change the file extension to ".html" instead of ".xml" for those documents.

[rdeltour]

F2F discussion: This is probably better handled at the XProc level. HTML reports can be serialized within XProc to an output path given as an option.

[bertfrees]

OK so all the output ports with px:media-type="application/vnd.pipeline.report+xml" should be changed into options.

This issue should be moved to pipeline-scripts.