# Zoom CSS links fail with HTML code 403

**URL:** <https://devforum.zoom.us/t/zoom-css-links-fail-with-html-code-403/140090>\
**Category:** Web\
**Created:** [December 19, 2025, 2:07am UTC](https://devforum.zoom.us/t/zoom-css-links-fail-with-html-code-403/140090 "2025-12-19T02:07:46Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![DavidStowell](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/davidstowell/32/52624_2.png) [@DavidStowell](https://devforum.zoom.us/u/DavidStowell)\
**Post date:** [December 19, 2025, 2:07am UTC](https://devforum.zoom.us/t/zoom-css-links-fail-with-html-code-403/140090/1 "2025-12-19T02:07:46Z")

</div>

Greetings,

I have a Blazor app with Meeting SDK Client View integrated in it. I am running version 5.0.0 of the SDK and the app nominally runs.

I have added two CSS links, provided by one of the Zoom devs, to the app and they are both returning error code 403 Forbidden on execution. They were directly copied from the dev’s code and (I assume) are spelled correctly.

How do I resolve this issue?

Thanks!