waelchatila.com - Windows category

Internet Explorer 6 & 7 document.domain bug

Wed, 31 Oct 2007 17:25:00 GMT

Disclaimer: Im not sure this a bug discovery...couldn't find anything that resembled it after a couple of minutes of googling, or a super silly security restriction.

I've been coding some javascript ajax code that inserts an iframe, and into the created iframe, inserts a form and submits the form to a (cross domain) server. This is an old cross-domain ajax technique by now, but while implementing it I came across this ridiculously annoying bug in IE. The line in red below will result in an "Access Denied" exception being thrown...again, only in IE. Tried this with IE6 under WinXP Media Center Edition SP2, IE7 under WinXP Home Edition SP2, and IE7 Windows Vista Home. Needless to say...it works just fine in FireFox.

Try it by clicking the button below.

This page should be served off http://waelchatila.com. As you can see, the document.domain is explicitly set to the domain the page was served from. The iframe src is also from the same server. I've tried it with a whole variety of variations, none of the demonstrated here but tested for.

iframe's document.domain = 'waelchatila.com';
iframe src is empty
iframe src is "javascript:false"

There should be no problem accessing the iframe's content in either case.

Now, if the document.domain = 'waelchatila.com'; line is removed, it works. In order for this to work, you'll need to reload this page if you clicked the previous button since document.domain has now already been assigned.

The same results present itself if the iframe is created with document.createElement('iframe') and document.appendChild(...)

I've yet to find a workaround for this issue. I'll be positing another entry if I found out how. Please let me know if you know of one!

How to move a subversion repository to another server

Tue, 06 Mar 2007 23:33:00 GMT

My closet server died last night. No big deal it was over ten years old and was running at 233MHz...besides it was my wife's old computer hehe. My friend Imran gave me one of his old work machines and I've been moving stuff over. Since I had a svn repository on the old machine the situation presented itself with a problem to move the whole repository. Luckily the good people behind svn have thought about this and provide out-of-the box commands to do this.

On the old server machine do.

svnadmin dump repositoryPath > repository.dumpfile

File transfer the repository.dumpfile file to the new server machine and over there do

cd /path/to/new-repository-parent-directory
svnadmin create repository-name
svnadmin load repository-name < repository.dumpfile

Then on your client type

svn switch --relocate oldurl newurl

Browsing JAR and WAR files like ZIP files in Windows

Thu, 04 Aug 2005 21:42:01 GMT

In Windows XP you can browse ZIP files as if they were folders. To do the same with JAR (or WAR) files simple:

Uninstall winzip if it's installed.
In the Registry editor, copy the entire \\HKEY_CLASSES_ROOT\.zip registry entry to \\HKEY_CLASSES_ROOT\.jar. The easiest way to do this is to export the .zip key, edit the .reg file in notepad, and re-import.