Lydon Ch
Lydon Ch

Reputation: 8815

html script tag

Why doesn't this work

<script src="jquery.js"/>

But this works

<script src="jquery.js"></script>

?

Firefox 3.5.8

Upvotes: 3

Views: 309

Answers (2)

Quentin
Quentin

Reputation: 943108

The script element is not defined as EMPTY (since you can embed the script directly inside it), therefore in HTML the end tag is required, therefore you cannot have something that is (in tag soup terms) a start tag with a random / character in it representing the entire element.

Hence we have: http://www.w3.org/TR/xhtml-media-types/#C_2

Upvotes: 0

cletus
cletus

Reputation: 625007

Because:

<script src="jquery.js"/>

is valid XML (including XHTML) but is not valid HTML.

See 18.2.1 The SCRIPT element:

18.2.1 The SCRIPT element

<!ELEMENT SCRIPT - - %Script;          -- script statements -->
<!ATTLIST SCRIPT
  charset     %Charset;      #IMPLIED  -- char encoding of linked resource --
  type        %ContentType;  #REQUIRED -- content type of script language --
  src         %URI;          #IMPLIED  -- URI for an external script --
  defer       (defer)        #IMPLIED  -- UA may defer execution of script --
  >

Start tag: required, End tag: required

Upvotes: 7

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