jQuery Mobile Ajax Linking and Markup

This little error had me stumped for a couple of days, jQuery Mobile was throwing errors every time I tried to load a page via Ajax, which is the normal procedure with links in jQuery Mobile as you can see from the Documentation.

These are the kind of errors I was getting

Break on Error to.data(“page”) is undefined
Line 8730 (Pulled from github 19/01/2011)

//trigger before show/hide events
from.data(“page”)._trigger(“beforehide”, {nextPage: to});
to.data(“page”)._trigger(“beforeshow”, {prevPage: from});

and

Uncaught TypeError: Cannot call method ‘_trigger’ of undefined
transitionPagesjquery.mobile.js:8732
$.mobile.changePage.$.ajax.successjquery.mobile.js:8878 jQuery.extend.handleSuccessjquery.mobile.js:6172
jQuery.extend.ajax.onreadystatechange.xhr.onreadystatechange

The only way I could get a page to load was to apply a rel atrribute to the link with the value ‘external’, like so:

<a rel="external" href="multipage.html">Multi-page link</a>

(Thanks for the heads up rigoxls)

But this defies the purpose and princeables of the jQuery Mobile framework, you can read about the navigation model they use here. So instead I decided to butcher everything in my initial loading page, removing everything I thought could or might be causing these errors (jCarousel, all Ajax calls, I even directly copied the example markup from the docs)

Everything I tried failed and I still got this damn error until I had the brainwave that it might be the returned content from the link that may be causing the error.. I was right.

The Fix

As it turns out the page you are linking too needs to be formated correctly, I.E like the following (I’m not sure if the Javascript is needed however I’ve left it in)

<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.0a1/jquery.mobile-1.0a1.min.css" />
<script src="http://code.jquery.com/jquery-1.4.3.min.js"></script>
<script src="http://code.jquery.com/mobile/1.0a1/jquery.mobile-1.0a1.min.js"></script>
</head>
<body>
<div data-role="page">
<div data-role="header">
<h1>Page Title</h1>
</div><!-- /header -->
<div data-role="content">
<p>Page content goes here I AM THE LINK CONTENT WOO</p>
</div><!-- /content -->
<div data-role="footer">
<h4>Page Footer</h4>
</div><!-- /header -->
</div><!-- /page -->
</body>
</html>

8 responses to “jQuery Mobile Ajax Linking and Markup”

  1. Nikita Sherman says:

    You helped me alot with this issue, thank you!

  2. St0iK says:

    thanx a lot bro 😛

  3. AK says:

    Thanks a lot dude, I was just about to start raging after spending a day trying to figure out why this was happening. 😳

  4. buckmastr says:

    Thanks a lot man. I was stumped.

  5. Scott says:

    Can you post up example code I still can’t get this to work it either errors the page or hashes the url to example.html#link.html. I am starting to rage out because there seems to be no way of fixing.

  6. Allison says:

    THANK YOU. Because of this I only spent a few minutes instead of days scratching my head.

  7. Dave says:

    Hi, I think its possibly the same problem I’m having but I’m getting it through a $_POST value in a form, so it’s not an href that’s throwing the trigger, but it is because it’s leaving the page, that’s fairly certain, so how do I get around this on a POST call? Any help would be appreciated. Thanks.

  8. JB says:

    THANK YOU. I cannot believe a sample response isn’t provided in documentation nor could I find an example response in any tutorial. I’m not saying it isn’t there but rather that I am a technically inclined person and this has had me stumped for far too long even after extensive Googling. THANK YOU!

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