Steps to reproduce: 1. Run Mozilla with -console to see error messages 2. Load data:text/html,quux 3. Type into urlbar: javascript:with(window.open("about:blank").document){write ("foo"); write("bar");} The code works fine at http urls, file urls, and about:blank, but at data:text/html urls, the second write() fails with NS_ERROR_DOM_PROP_ACCESS_DENIED. I get the same results using the script as a url in the urlbar, as a personal toolbar bookmarklet, as a javascript: link in the data page, or as a <script> in the data page. This equivalent code will fail under the same circumstances and may be easier to use for debugging: javascript:x=window.open("about:blank").document;x.write("foo");x.write("bar"); I noticed the problem while using the DOM property tree bookmarklet at http://www.cs.hmc.edu/~jruderma/mozilla/proptree/ as a personal toolbar link.

Same thing happens when you start at a javascript: url instead of a data:text/html url (for example, javascript:4).

Mass changing QA to ckritzer.

Mass changing milestones to Moz0.9.1. Many of these bugs are dependent on the XPConnected DOM and its associated security UI changes.

I can't reproduce this anymore, so I guess it's fixed.

Currently blocked by bug#82159

Marking VERIFIED FIXED on: -MacOS91 2001-06-01-08-trunk -Win98SE 2001-06-01-06-trunk -LinRH62 2001-06-01-08-trunk