Picture this scenario: you have two domains and you're looking to enable communication between them using Javascript.
Currently, I have set up two servers on separate ports on my local machine. While it appears that the request is being successfully sent from one server to the other, there seems to be an issue with receiving the data back.
Any thoughts on what the problem might be and how I can troubleshoot it? I would highly appreciate any code examples you can provide. Thank you.
While I'm not well-versed in django, it's crucial for the other domain to have CORS support in place. Refer to resources like Wikipedia and the w3 spec for more insights.
Essentially, the remote server should back the Access-Control-Allow-Origin header. To grant access to all origins, you may opt for setting the header value to *.
For a more tailored approach, seek documentation specific to your web server. Observing server interactions via a tool like wireshark could also shed light on the dynamics of your HTTP requests/responses...
To enable cross-origin resource sharing (CORS) between host 1 and host 2, you must include an additional header on host 2. For detailed instructions, visit this helpful website: http://enable-cors.org/
JSONP offers a solution to cross domain problems:
jQuery provides great support for JSONP,
(just a link I found on the topic)
Resource for JSONP with jQuery
EDIT:
JSONP may seem a bit unusual initially - it essentially supports JSONP notation (calling a callback method if provided). It checks for a 'callback' method and instead of returning results like
{ some: 12 }
It executes,
callback( { some: 12 } )
For more information, read my blog post:
Understanding JSON, JSONP, and the Same Origin Policy Issue
Using jsonp is a great choice; I actually took advantage of a Django snippet that can be found here:
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