I read
https://developer.mozilla.org/en/Cod...ivileged_pages

but the problem is that I'm not the owner of the web application I'm
trying to get the data from so I can't do that. I can't trigger a
custom event from the page...
I understand that evaluating, executing javascript code from a alien
page can have security issues. I'll do my best to prevent them (use
the Components.utils.evalInSandbox function etc..) but for the moment
I have to at least learn how to acces this object.

Why he is not available from the main window object?


m


On Mar 16, 6:52*pm, Eric Jung wrote:
> On Mon, Mar 16, 2009 at 1:05 PM, Marcel wrote:
> > Hello all,
>
> > Newby question!
> > I have to write a function on my plugin that acces a javascript object
> > defined on a web page. That object is a hash and its defined on the
> > begining of a js included in the header of the page:
>
> > imageList = {};
>
> > During the lifecycle of the page that object wont be empty anymore and
> > when the user clicks a button or something on my plugin I'll grab that
> > information and process it.
>
> > The problem is that I cant find it. I have a reference to the document
> > and the window. I tried
>
> > window.imageList
> > (that works on firebug's console)
>
> > but all I get is that imageList is not defined, null etc.
>
> > I'm sure I'm accessing the main window object (I use the code I found
> > here:
>
> >https://developer.mozilla.org/en/Wor...n_chrome_code#...
> > ).
>
> > I'm not even sure this is a good thing to do...
> > Can anyone give me a hint on that one?
>
> You need to be very careful when interacting unprivileged code (e.g.,
> standard web pages) from privileged code (your extension) , and vice-versa.
> You don't want to inadvertently permit web pages to do nefarious things. Use
> this technique instead:https://developer.mozilla.org/en/Cod...ion_between_pr...
> I've updatedhttps://developer.mozilla.org/en/Working_with_windows_in_chrome_code#...
> to
> point to that page.
>
> Eric