Adding script JS in HTML problem

Question

somebody can answer me why occur this problem?

With the following code my site only works in Chrome, on IE7/8 and Firefox show me only the background:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Site Title</title>
<link href="css/styles.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="js/jquery-1.3.2.min.js" />
<script type="text/javascript" src="js/functions.js" />
</head>
...

And with this code works in Chrome, IE7/8 and Firefox:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="pt-br" xml:lang="pt-br">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>CSite Title</title>
<link href="css/styles.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="js/jquery-1.3.2.min.js"></script>
<script type="text/javascript" src="js/functions.js"></script>
</head>
...

Viewing the code that don't works in Firebug I see that the file 'functions.js' is not called, I don't understand, why don't works with "<script />" and with "<script></script>" works?

Community · Accepted Answer · 2017-05-23 12:19:36Z

12

from this ticket (Why don't self-closing script tags work?)

(please note that in the referenced ticket the accepted answer is not actually correct)

Note that IE does not support XHTML parsing. Even if you use an XML declaration and/or an XHTML doctype, IE still parses the document as plain HTML. And in plain HTML, the self-closing syntax is not supported. The trailing slash is just ignored, you have to use an explicit closing tag.

Even browsers with support for XHTML parsing will still parse the document as HTML unless you serve the document with a xml mime type. But in that case IE will not display the document at all!

edited May 23, 2017 at 12:19

CommunityBot

11 silver badge

answered Oct 17, 2009 at 13:37

robjmills

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2 Comments

Konrad Rudolph Over a year ago

Note that the accepted answer on the other question is in fact wrong – or at least it’s not the reason for this behaviour.

robjmills Over a year ago

yeah, should have pointed that out. the answer i quoted was not actually the accepted answer.

Community · Accepted Answer · 2017-05-23 11:55:41Z

4

Because <script> tag MUST have a closing tag in HTML4

Another source for information: XHTML - Is writing self closing tags for elements not traditionally empty bad practise?

edited May 23, 2017 at 11:55

CommunityBot

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answered Oct 17, 2009 at 13:36

Rubens Farias

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Comments

tvanfosson · Accepted Answer · 2009-10-17 13:38:24Z

2

The HTML specification requires that you have an end tag for a script element. The former is not valid HTML, while the latter is.

answered Oct 17, 2009 at 13:38

tvanfosson

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Comments

Roger · Accepted Answer · 2009-10-17 13:46:37Z

1

Closing the tags I think is best viewed in code and also I think a good practice. If you follow this tip will no longer have such problems.

answered Oct 17, 2009 at 13:46

Roger

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