access one subdomain from another

Question

I'm trying to access a javascript file that sits on a subdomain through a page that is a subdomain of the first subdomain. That is, I have a page at admin.www2.mysite.com that I'd like to have access to scripts in the www2 subdomain ( <SCRIPT SRC="www2.mysite.com/resources/scripts/javascript/file.js"></SCRIPT> )

Even hardcoding the link in like this doesn't work. I still get a 404. Even though looking at the src attribute in the head of the document seems right

<SCRIPT SRC="www2.mysite.com/resources/scripts/javascript/file.js" TYPE="TEXT/JAVASCRIPT"></SCRIPT>

Directly below it there is the error:

GET http://admin.www2.mysite.com/add_user/www2.mysite.com/resources/scripts/javascript/file.js
  directory within admin ------> ^^^^^^^^

I have tried to get at it by using , but <SCRIPT SRC="<?=$_SERVER['HTTP_HOST']?>/resources/scripts/javascript/file.js

gives me the error:

GET http://admin.www2.mysite.com/cyrious_add_user/admin.www2.mysite.com/resources/scripts/javascript/file.js 404 (Not Found)

The directory admin is physically inside the directory www2 on the server.

How can I navigate from this sub-sub domain to the other subdomain?

Answer 1

You're omitting the scheme from the URL which causes it to be a relative path (hence the first error). Simply add a scheme:

src="//www2.mysite.com..."

The // will use the same scheme as the page request.