Question

Workarounds for Cross Domain (localhost + other) AJAX calls?

Asked by: TimYates

I have a website where I am using DWR to call the server in an AJAX style, however I now have a requirement to show user related data alongside that stored on the server.

My initial thought was that I could run a Java application (embedding Jetty) on the user's machine, and then load JSON from it by using an XHR request using the localhost:8888 url.

However, I'm getting security exceptions on the XHR.open method...

I thought you were allowed to load stuff from localhost?  I guess not, when the main page url isn't from there...

Does anyone have any ideas on how this can be done?  I don't want to upload the user's data (as it's huge), and so far I have the following ideas -- just wondering if anyone had any experience and knew of a way of getting this to work?

1)  Have the server running on localhost serve an html page which can be loaded into a hidden IFRAME on the main page.  Then have this IFRAME load the data into a JSON object from localhost, and then pass this JSON object back to the parent window (sounds convoluted, and would be nice to know if it might work before I try it)
2)  Do it the way I am doing it, but do it right ;-)  (I accept that the way I'm doing it MIGHT work, and it's just I have given up too easily)
3)  Forget about it...  It can't be done... (I know this is always a possible solution to problems like this)

Anyway...hope someone who has walked this path before can help :-)

Cheers!

Tim

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Asked On
2007-07-31 at 02:34:53ID22731091
Tags

cross

,

domain

,

ajax

Topics

JavaScript

,

Java Programming Language

Participating Experts
1
Points
500
Comments
7

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Accepted Solution

by: mplungjanPosted on 2007-07-31 at 02:45:24ID: 19598787

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by: mplungjanPosted on 2007-07-31 at 02:47:31ID: 19598795

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Expert Comment

by: TimYatesPosted on 2007-07-31 at 02:49:13ID: 19598800

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Expert Comment

by: TimYatesPosted on 2007-07-31 at 02:49:45ID: 19598803

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Expert Comment

by: TimYatesPosted on 2007-07-31 at 03:22:54ID: 19598947

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by: mplungjanPosted on 2007-07-31 at 04:24:59ID: 19599266

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Expert Comment

by: TimYatesPosted on 2007-07-31 at 05:50:34ID: 19599845

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