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Editorial Team
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Asked: 2026-05-13T22:22:21+00:00

Why doesn’t this work <script src=jquery.js/> But this works <script src=jquery.js></script> ? Firefox 3.5.8

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Why doesn’t this work 

<script src="jquery.js"/>

But this works

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

?

Firefox 3.5.8

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1 Answer

  1. Editorial Team

    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

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