Allow user defined attributes to override spec-defined ones.

[GoogleCodeExporter]

It's currently possible to use UrlValuedAttribute to tell pagespeed to process 
additional tag attributes, but not to override existing ones.  Can we remove 
this limitation?

It looks like it's just a matter of switching the order of the "Handle 
spec-defined attributes" and "Handle user-defined attributes" code in 
resource_tag_scanner.cc

Original issue reported on code.google.com by jefftk@google.com on 14 Apr 2014 at 12:57

[GoogleCodeExporter]

Fixed in r3937.

Original comment by jefftk@google.com on 14 Apr 2014 at 7:58

• Changed state: Fixed

[GoogleCodeExporter]

Original comment by jmaes...@google.com on 18 Apr 2014 at 7:29

• Added labels: Milestone-v31