# Codeblock Theme Picker

**URL:** <https://meta.discourse.org/t/codeblock-theme-picker/146396>\
**Category:** Theme component\
**Tags:** official, codeblock-theme-picker\
**Created:** [April 1, 2020, 6:53am UTC](https://meta.discourse.org/t/codeblock-theme-picker/146396 "2020-04-01T06:53:35Z")\
**Posts on this page:** 1\
**Showing post:** 16

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**Author:** ![MuZhou233](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/muzhou233/32/211433_2.png) [@MuZhou233](https://meta.discourse.org/u/MuZhou233)\
**Post date:** [February 28, 2021, 12:01pm UTC](https://meta.discourse.org/t/codeblock-theme-picker/146396/16 "2021-02-28T12:01:37Z")

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This theme is very useful and running in my site for a long time. How ever I suddenly found it has a problem on firefox. The custom css file blocked by the following header `X-Content-Type-Options: nosniff`. Console shows that css file MIME type is text/html. No matter which theme I choise the problem still happen on firefox but chrome is fine.

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