testing override URL for javascript:'markup' - generated documents
p should be a div when we expect a whole table to end up inside it
changing to one 'test' with 4 'steps' rather than one test per IFRAME and removing debug code
META help links to both WHATWG and W3C
Merge pull request #1315 from w3c/hallvors/iframe-javascript-url

testing override URL for javascript:'markup' - generated documents; r=zcorpan+Ms2ger