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XMLHttpRequest object and WebObjects
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XMLHttpRequest object and WebObjects


  • Subject: XMLHttpRequest object and WebObjects
  • From: Greg <email@hidden>
  • Date: Wed, 1 Jun 2005 09:44:41 +1000

Hi Gurus,
I am currently reworking some components in my wo app to start making less page refreshes by going back to the server for a complete new layout, instead just using javascript and XMLHttpRequest objects to just send and receive the data. I have been having trouble with getting the request sent back to the server in safari and mozilla. Safari doesn't display any messages, but in mozilla it was throwing a security access problem, "permission denied to call method XMLHttpRequest.open". I googled and found a link to mozilla's site which had the following interesting piece of information. I figured out why safari and mozilla weren't playing nice was because the scripts were coming from http://localhost/ and the wo app was http:// server.local/ making it a different domain.


<Quote>

Signing Scripts

During development of a script you'll eventually sign, you can use codebase principals for testing, as described in "Codebase Principals". Once you've finished modifying the script, you need to sign it. The major difference in signing scripts between 4.x and Mozilla is that in Mozilla, the entire page must be signed, as opposed to only the script running on the page. For any script to be granted expanded privileges, all scripts on or included by an HTML page must be signed.

You can sign JavaScript files (accessed with the SRC attribute of the SCRIPT tag), inline scripts, event handler scripts JavaScript entities and javascript: URLs.
</Quote>


This poses a serious problem for any sort of server side generated web page, not just web objects. How can a dynamically generated page sign itself?

Greg
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