ansaurus

Question

How does one have Greasemonkey run before *anything* else in the page?

Answer 1

A:

Have you tried:

(function() {
    var yourFunction = function() 
    {
       // ...
    }
    window.addEventListener("load", yourFunction, false);
})();

Assaf Lavie 2009-04-02 03:25:14

Good thought. But, the listener still seems to start only after the <html> tag. Thanks though.

anschauung 2009-04-02 14:28:24

greasemonkey executes the userscript on the domready event, the load event is fired at the later point after all the resources have been loaded

ionelmc 2009-04-04 15:04:43

Answer 2

+1 A:

It's not possible, because HTML requres that scripts are executed during parsing or not at all, e.g. this is allowed:

<script> document.write('<!'+'--'); </script>

If browser goes past this script without executing it, it will see completely different document, therefore you can't analyze DOM of HTML document before scripts run.

Opera solves this problem in UserJS by firing BeforeScript events, allowing UserJS to change/remove scripts at the very last moment.

porneL 2009-04-04 18:06:22

ansaurus

tags:

views:

answers:

How does one have Greasemonkey run before anything else in the page?

related questions