Why does my simple strict XHTML file give errors when I include jquery?

Question

I'm trying to make a simple strict HTML file that includes jquery:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">

  <head>

    <title>Test File</title>

    <link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css" rel="stylesheet" type="text/css"/>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js"></script>

  </head>

<body>

</body>
</html>

But Firefox displays the following errors in the error console when I try to load it:

Error: d.style is undefined
Source File: http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js
Line: 33

Error: jQuery is not defined
Source File: http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js
Line: 19

Help! I don't understand :(

Add type="text/javascript" to the <script> tags to make it valid XHTML 1.0 strict for a start. — Jake Wharton
– Jake Wharton, Commented Apr 22, 2010 at 2:06
Thanks - added, but it doesn't seem to change the errors that I get. — Colen
– Colen, Commented Apr 22, 2010 at 2:12
I just tested the above i dont get any errors...check the encoding of your html file, make sure is utf-8 — Luis
– Luis, Commented Apr 22, 2010 at 2:19
I tested as well, and nothing came up. Perhaps your version of Fx might help. What version of Firefox are you using? — Dustin
– Dustin, Commented Apr 22, 2010 at 2:19

deceze · Accepted Answer · 2010-04-22 02:32:48Z

1

Is the site served as text/html or application/xml+xhtml?

(It was supposed to be a question, but apparently it was the answer.)

answered Apr 22, 2010 at 2:32

deceze♦

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1 Comment

Dustin Over a year ago

Yet another case of "Sending XHTML as text/html Considered Harmful" < hixie.ch/advocacy/xhtml > ? -_-

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