There is a bug in html imports that causes the browser to block in Chrome 36.

This happens when you have a DAG in your graph of imports, where the node in the merge of the DAG doesn't have a script tag.

See attached repro, which has a graph like this:

  index.html* -> n1 -> n2*
       | |
       | v
       +-------------> n3 -> n4*

where files with * have a script tag. The page doesn't load unless you add a script in n3, or you remove the one in n2.

This happens in polymer apps: polymer.html is a funnel, similar to n3 in the repro.

Attachment:
repro.tar (10 KB)