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POXMLHttpRequest of Linkedin API url returns null
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  1. POXMLHttpRequest of Linkedin API url returns null
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    copied!<p>In my javascript application i want to perform a people search on Linkedin. Since this search has to work without a user having to login to Linkedin, i'm using a javascript OAuth library and my Linkedin api key, secret key, oauth token and oauth secret token to generate a api url. This url looks like this:</p> <p><a href="http://api.linkedin.com/v1/people-search:(people:(id,first-name,last-name,picture-url,location))?first-name=John&amp;last-name=Smith&amp;count=4&amp;format=json&amp;oauth_consumer_key=XXX&amp;oauth_token=XXX&amp;oauth_version=1.0&amp;oauth_timestamp=XXX&amp;oauth_nonce=XXX&amp;oauth_signature_method=HMAC-SHA1&amp;oauth_signature=XXX" rel="nofollow">http://api.linkedin.com/v1/people-search:(people:(id,first-name,last-name,picture-url,location))?first-name=John&amp;last-name=Smith&amp;count=4&amp;format=json&amp;oauth_consumer_key=XXX&amp;oauth_token=XXX&amp;oauth_version=1.0&amp;oauth_timestamp=XXX&amp;oauth_nonce=XXX&amp;oauth_signature_method=HMAC-SHA1&amp;oauth_signature=XXX</a></p> <p>When i directly enter the url in my browser, it provides the results i want. However, performing a javascript XMLHttpRequest of this url always returns null. In my opinion, this indicates that there must be a problem with cross-domain policy. Yet, as i have added my domain to my Linkedin app's javascript api domains, i thought no cross-domain problems would occur.</p> <p>Can anybody tell me what is the problem here?</p> <p>PS: This is the javascript code for the XMLHttpRequest:</p> <pre><code>var xhr=new XMLHttpRequest(); xhr.open("GET",url,true); // url = valid url like the one above xhr.onreadystatechange=function() { if (xhr.readyState===4) { alert(xhr.responseText); // returns null } }; xhr.send(null); </code></pre>
 

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