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Editorial Team
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Asked: 2026-05-16T08:27:40+00:00

I have following page <html> <head> <script type=text/javascript src=e01.js></script> </head> <body> <script type=text/javascript> var

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I have following page

<html>
<head>
    <script type="text/javascript" src="e01.js"></script>
</head>
<body>
<script type="text/javascript">
var obj={someHTML: "<script>alert('a');</script>rest of the html",  
               someOtherAttribute:"some value"};
    alert(obj.someHTML);
</script>
</body>
</html>

in someHTML attribute of my object I have </script> tag in a string. but browser reads this as actual close tag and closes the script element. is there anything I am missing here? (tried it in ff and chrome)

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1 Answer

  1. Editorial Team

    HTML is parsed before and independent from Javascript. The current browser behavior is that, once an open tag <script> is found, the browser will switch to “Script Data State” and interpret all following data as script until a </script> is found.

    Where the </script> is detected doesn’t matter — inside a JS string, a JS comment, a CDATA section, or even HTML comment.

    You need to make the string does not look like </script> to the HTML parser. The simplest way is to write <\/script> as in @Daniel‘s answer.

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