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I was testing some HTML code I'm making, and while using the Developer Tools on Google Chrome version 22.0.1229.94 m, I saw the <body> tag has the attribute cz-shortcut-listen="true" (which of course is not on my code). What does it mean and why is it showing up? (I tried looking it up in google, but found nothing relevant)

Screenshot

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1 Answers1

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It's being added by the Colorzilla browser extension.

https://twitter.com/brianpemberton/status/201455628143689728

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    It'd be nice if there was a standard prefix for extension injections like `browser-extension-` / `b-ext-` or something. That way, it'd be a lot easier to figure out what's random cruft and what was put there by the page author. I know you can just run a different Chrome user profile that has no extensions installed, but sometimes those very extensions - Colorzilla, even - are really useful for analysing web pages. – iono Feb 28 '13 at 07:12
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    Write a suggestion to leading browser vendors - that's a good idea – xyhhx Aug 13 '13 at 21:51
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    @twome @martin `cz-` in `cz-shortcut-listen` is there for `ColorZilla` already. Yeah, however browsers should also take that as a standard protocol for all extensions out there :) – Izhar Aazmi Jul 23 '14 at 14:27
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    Feels like a data-dash attribute would've been a better choice – EightyOne Unite Jun 03 '15 at 15:53
  • why?... @Stimul8d – ICW Jul 28 '19 at 21:35
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    I thought it was some kind of *Czech language* compatibility plugin. – adelriosantiago Nov 25 '19 at 03:14
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    Funny how 8 years later, it still confuses people (probably testing their own code) and will likely continue to do so for many more years. – TheSHEEEP Dec 11 '20 at 08:15