It should be possible to request that a script only be run if JavaScript1.7 is supported either through the language or type attributes: <script language="javascript1.7"></script> <script type="text/javascript;version=1.7"></script>

I think this will do it. Note that there appears to be a bug in nsJSEnvironment.cpp in that it is missing JSVERSION_1_6.

Mark, this patch contains a tweak to dom/src/base/nsJSEnvironment.cpp that we might have caught if we had tested the dom agnostic branch using the js test library as well as the dom.

Comment on attachment 225683 [details] [diff] [review] patch Peter, Johnny: this touches a little dom stuff. Can you r/sr please so I can get this in for testing?

Comment on attachment 225683 [details] [diff] [review] patch I can sr in lieu of jst, who is honeymooning. /be

Checking in dom/src/base/nsJSEnvironment.cpp; /cvsroot/mozilla/dom/src/base/nsJSEnvironment.cpp,v <-- nsJSEnvironment.cpp new revision: 1.284; previous revision: 1.283 Checking in js/src/jsapi.c; /cvsroot/mozilla/js/src/jsapi.c,v <-- jsapi.c new revision: 3.271; previous revision: 3.270 done Checking in js/src/jspubtd.h; /cvsroot/mozilla/js/src/jspubtd.h,v <-- jspubtd.h new revision: 3.60; previous revision: 3.59 done

I know I filed this bug, and checked it in, but I use it regularly and it works so I am verifying it to get it off my to be verified list.