# (SOLVED) Extension height is always 300px in local mode

**URL:** <https://staging-discuss.dev.twitch.com/t/solved-extension-height-is-always-300px-in-local-mode/17143>\
**Category:** Extensions\
**Created:** [August 15, 2018, 2:54pm UTC](https://staging-discuss.dev.twitch.com/t/solved-extension-height-is-always-300px-in-local-mode/17143 "2018-08-15T14:54:14Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![uyouthe](https://d1d6mrmdu7ztse.cloudfront.net/user_avatar/staging-discuss.dev.twitch.com/uyouthe/32/4978_2.png) [@uyouthe](https://staging-discuss.dev.twitch.com/u/uyouthe)\
**Post date:** [August 15, 2018, 2:54pm UTC](https://staging-discuss.dev.twitch.com/t/solved-extension-height-is-always-300px-in-local-mode/17143/1 "2018-08-15T14:54:14Z")

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Hello!

I’m trying to load a video\_overlay extension in developer rig. So I’ve used developer rig to generate video\_overlay manifest that contains no single “300” value anywhere, but my extension is always 300 pixels high.

Something just adds `style="height:300px"` to extension’s iframe and I don’t know how to get rid of it.

Developer rig correctly recognise my extension as video\_overlay tho.

Any suggestions?

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**Author:** ![cidzerda](https://d1d6mrmdu7ztse.cloudfront.net/user_avatar/staging-discuss.dev.twitch.com/cidzerda/32/4589_2.png) [@cidzerda](https://staging-discuss.dev.twitch.com/u/cidzerda)\
**Post date:** [August 15, 2018, 4:00pm UTC](https://staging-discuss.dev.twitch.com/t/solved-extension-height-is-always-300px-in-local-mode/17143/2 "2018-08-15T16:00:17Z")

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Thank you for reporting this issue. We are tracking it [here](https://github.com/twitchdev/developer-rig/issues/147).

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<div class="post-metadata">

**Author:** ![uyouthe](https://d1d6mrmdu7ztse.cloudfront.net/user_avatar/staging-discuss.dev.twitch.com/uyouthe/32/4978_2.png) [@uyouthe](https://staging-discuss.dev.twitch.com/u/uyouthe)\
**Post date:** [August 15, 2018, 8:16pm UTC](https://staging-discuss.dev.twitch.com/t/solved-extension-height-is-always-300px-in-local-mode/17143/3 "2018-08-15T20:16:01Z")

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As I said on GitHub issue, you guys are fantastic. Well done. The problem just vanished.

Thanks a lot.

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<div class="post-metadata">

**Author:** ![cidzerda](https://d1d6mrmdu7ztse.cloudfront.net/user_avatar/staging-discuss.dev.twitch.com/cidzerda/32/4589_2.png) [@cidzerda](https://staging-discuss.dev.twitch.com/u/cidzerda)\
**Post date:** [August 16, 2018, 7:10pm UTC](https://staging-discuss.dev.twitch.com/t/solved-extension-height-is-always-300px-in-local-mode/17143/4 "2018-08-16T19:10:20Z")

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You are most welcome. We aim to please. 🙂