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I am trying to use sessionStorage on a page but it is giving me an error. Here is the code:

<script type="text/JavaScript">
 sessionStorage.setItem("classname", "value1");
 sessionStorage.setItem("classdesc", "value2");
</script>

The error I get from firebug console is: Operation is not supported" code: "9

When I try to use localStorage it works fine, so why does sessionStorage cause an error?

I am trying to use sessionStorage on a page but it is giving me an error. Here is the code:

<script type="text/JavaScript">
 sessionStorage.setItem("classname", "value1");
 sessionStorage.setItem("classdesc", "value2");
</script>

The error I get from firebug console is: Operation is not supported" code: "9

When I try to use localStorage it works fine, so why does sessionStorage cause an error?

  • javascript
  • html
  • firebug
  • local-storage
Share Improve this question edited Dec 8, 2010 at 2:11 bjo asked Dec 8, 2010 at 1:50 bjobjo 5502 gold badges8 silver badges15 bronze badges 2
  • Does using window.sessionStorage show the same problem? – Matt Ball Commented Dec 8, 2010 at 2:21
  • Are you loading via file:///? yuilibrary./projects/yui3/ticket/2529165 – Kevin Hakanson Commented Dec 8, 2010 at 3:53
Add a ment  | 

1 Answer 1

Reset to default 8

The only thing I can think of is that "the page isn't ready", try placing this code at the end of the body section

<html>
  <head></head>
  <body>
    <!-- YOUR PAGE HERE -->
    <script type="text/JavaScript">
      sessionStorage.setItem("classname", "value1");
      sessionStorage.setItem("classdesc", "value2");
    </script>
  </body>
</html>

Final Answer: sessionStorage wont work in "local mode", but it will work if you upload the file to a server.

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