I'm wondering if there is a method to access this JSON feed solely through a browser client

Looking to develop a custom client for last.fm? Find your music "station" feed in JSON format here: .

However, encountering an issue when trying to access it using $.getJSON():

The 'Access-Control-Allow-Origin' header is not present on the requested resource. Origin '' is restricted from accessing it.

Facing a CORS problem with last.fm's end. Experimented with various solutions:

  1. AJAX. Fails due to Access-Control-Allow-Origin error.
  2. An iframe with document.domain set as "www.last.fm" or "last.fm". Encounter SAMEORIGIN iframe error.
  3. JSONP. Not supported with this feed.
  4. A <script> tag with src linked to the feed link. However, $('#scriptTagId').html() remains empty.
  5. Attempted Flash but facing cross-origin issues.
  6. Considering Java applet, yet concerns about size and cross-origin problems persist.

Pondering the use of a web proxy where the client employs a server-side proxy to fetch the feed, but desiring a pure client-side application without any server involvement. Aim to host on a CDN (S3 + Cloudfront).

Is there any workaround for this dilemma?

javascriptjsonajaxcross-domaincors

Answer №1

Unfortunately, the browser alone cannot solve the issue you are facing. If the third-party site does not support CORS or JSONP, your options are limited unless you have control over the third-party site or can use a server of your own (or a third-party proxy like YQL) to access the data.

One way to access the data with YQL:

$.getJSON('https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20json%20where%20url%3D\'http%3A%2F%2Fwww.last.fm%2Fplayer%2Fstation%2Fuser%2Fskeftomai%2Fmix\'&format=json&diagnostics=true&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys&callback=?', function (response) {
    console.log(response.query.results.json);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

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