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POAJAX not working in IE in a Wordpress Plugin
 

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  1. POAJAX not working in IE in a Wordpress Plugin
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    <p>I am building a Wordpress plugin and I am attempting to use AJAX. I am having trouble getting AJAX to work in IE.</p> <p>The following attempts all work in FF/Chrome but fail in IE.</p> <p>PHP:</p> <pre><code>add_action('wp_ajax_nonpriv_trying_ajax', 'trying_ajax'); add_action('wp_ajax_trying_ajax', 'trying_ajax'); function trying_ajax(){ $response = json_encode( array( 'success' =&gt; true ) ); header( "Content-Type: application/json" ); echo $response; exit; } </code></pre> <p>Javascript:</p> <pre><code>var ajaxData = { action: 'trying_ajax', state: filterStates }; JQuery.post(myconvio_convio_functions.ajaxurl, ajaxData, function(data) { alert(data); }, 'json' ); </code></pre> <p>FF/Chrome returns a JSON object; however IE returns a 0.</p> <p><a href="http://codex.wordpress.org/AJAX_in_Plugins" rel="nofollow">http://codex.wordpress.org/AJAX_in_Plugins</a> says...</p> <blockquote> <p>Error Return Values</p> <p>If the AJAX request fails when the request url is wp-admin/admin-ajax.php, it will return either -1 or 0 depending on the reason it failed. Additionally, if an AJAX request succeeds, it will return a 0.</p> </blockquote> <p>I have tried this to account for caching by:</p> <pre><code>var d = new Date(); var n = d.getTime(); JQuery.post(myconvio_convio_functions.ajaxurl+"?x="+n, ajaxData, </code></pre> <p>I have tried a relative url to account for cross domain issues:</p> <pre><code>JQuery.post('/FWW/wp-admin/admin-ajax.php', ajaxData, </code></pre> <p>All the same results: FF/Chrome returns a JSON object; however IE returns a 0.</p> <p>Thanks for any help.</p> <p>.... Changed to $.ajax and added success,error and complete - results are in the comments. Still the same results, IE comes back as success but with response of 0</p> <pre><code>$.ajax({ url: '/FWW/wp-admin/admin-ajax.php', type: 'POST', data: ajaxData, dataType: 'json', success: function(response, status, xhr) { console.log(response); // Firebug log: Object { success=true } alert('success - response: ' + response); // FF Alert: success - response: [object Object] // IE Alert: success - response: 0 alert('success - status: ' + status); // IE&amp;FF Alert: success - status: success alert('success - xhr.readyState: ' + xhr.readyState); // IE&amp;FF Alert: success - xhr.readyState: 4 alert('success - xhr.responseText: ' + xhr.responseText); // FF Alert: success - xhr.responseText: {"success":true} // IE Alert: success - xhr.responseText: 0 alert('success - xhr.status: ' + xhr.status); // IE&amp;FF Alert: success - xhr.status: 200 alert('success - xhr.statusText: ' + xhr.statusText); // IE&amp;FF Alert: success - xhr.statusText: OK }, // error handler function never gets called on IE or FF error: function(jqXHR, textStatus, errorThrown) { alert('error jqXHR: ' + jqXHR); alert('error textStatus: ' + textStatus); alert('error errorThrown: ' + errorThrown); }, complete: function(jqXHR, textStatus){ alert('complete - jqXHR.readyState: ' + jqXHR.readyState); // IE&amp;FF Alert: complete - jqXHR.readyState: 4 alert('complete - jqXHR.responseText: ' + jqXHR.responseText); // FF Alert: complete - jqXHR.responseText: {"success":true} // IE Alert: complete - jqXHR.responseText: 0 alert('complete - jqXHR.status: ' + jqXHR.status); // IE&amp;FF Alert: complete - jqXHR.status: 200 alert('complete - jqXHR.statusText: ' + jqXHR.statusText); // IE&amp;FF Alert: complete - jqXHR.statusText: OK alert('complete - textStatus: ' + textStatus); // IE&amp;FF Alert: complete - textStatus: success } }); </code></pre>
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    1. COWhat do you get when you do `console.log(data)` instead of the alert? It is hard to think a call only fails in IE. To be very sure no error is returned in firefox, you can also append success, error and complete callbacks as per the documentation: http://api.jquery.com/jQuery.post/ Check the last example at the bottom.
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    2. COthanks @François Wahl Using console.log(data) in Firebug I get: Object { success= true }
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    3. COadded append success, error and complete callbacks with results in question
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      1. POAJAX not working in IE in a Wordpress Plugin
      1. USuser877718
 

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