CLARIFICATION: This is not a mozilla bug, this is a privoxy proxy bug (though they don't seem to think that corrupting source code is a bug)
It's also been reported and closed in a rather kludgy and unsatisfactory manner at RedHat
Summary: Viewing the above URL displays the word concat instead of the real text that was there which is open.
I looked at a perl script which calls open. Every occurance of the word open is replaced with the word concat. Everything else is correct. We reduced the problem down to a minimal example using the above URL. If I fetch the file using lynx I see open. If I use mozilla I see concat. Reproducible: Always Steps to Reproduce: 1.Visit the above URL 2.Look at the work in line 2. 3.It will display concat even though the file on the server says open.