Collapsing doesn't work if JavaScript is disabled

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Disable JavaScript (from browser options, webdev toolbar or noscript, all 
have same effect)
2. Load JSON
3. Try to collapse any object/array

What is the expected output?
Collapsible nodes regardless of whether content JavaScript is enabled globally 
or for the domain.

Original issue reported on code.google.com by [email protected] on 8 Jun 2011 at 11:23

[welwood08]

This has worsened since the webext implementation. Now the JSON won't even be formatted and the page is blanked by the attempt to hide the flash of unstyled content.