This code crashes Safari 2.0 (412), the build included in Mac OS X 10.4.1. I’ve no idea why. If you type something in the field and then click or tab away, Safari (or any other WebCore instance) instantly freezes and/or quits. But it doesn’t always happen the first time.

<input type="text" onblur="this.type='password';" onfocus="this.type='text';" />

View an actual crashing field (don’t if you have open tabs that you want to keep).

Type and tab away:

FireFox handles it just fine, though some internal JavaScript errors show up in the JavaScript Console. IE just complains of an error … it doesn’t know how to set the .type of an input type="text".

I should submit a WebCore bug, but I’ve never done that before. Looks like I have to search for the issue in BugZilla first.

Can anyone confirm this?