Use IE6. Go to diff view. Click on a line number.
No comment dialog appears, but an error dialog with this error appears:
"Could not get the whiteSpace property. Invalid argument."
This occurs in yui/utilities/utilities.js, line 23.
Going up the callstack, the whiteSpace name comes from diffviewer.js (line
402, in rev 1150):
this.proxyEl.setStyle("white-space", "pre-wrap"); // CSS 3
this.proxyEl.setStyle("white-space", "-moz-pre-wrap"); // Mozilla, 1999+
this.proxyEl.setStyle("white-space", "-pre-wrap"); // Opera 4-6
this.proxyEl.setStyle("white-space", "-o-pre-wrap"); // Opera 7
this.proxyEl.setStyle("word-wrap", "break-word"); // Opera 7
If I comment out all the lines with "white-space", the comment dialog works
on IE6.