# Can't get Web Viewer to show raw HTML (using URL) or Web Viewer Extension (using POST) in Thunkable Live

**URL:** <https://community.thunkable.com/t/cant-get-web-viewer-to-show-raw-html-using-url-or-web-viewer-extension-using-post-in-thunkable-live/4109013>\
**Category:** Issues / Bugs\
**Created:** [October 6, 2026, 7:05pm UTC](https://community.thunkable.com/t/cant-get-web-viewer-to-show-raw-html-using-url-or-web-viewer-extension-using-post-in-thunkable-live/4109013 "2026-10-06T19:05:37Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dlmetzgerbcch](https://avatars.discourse-cdn.com/v4/letter/d/71e660/32.png) [@dlmetzgerbcch](https://community.thunkable.com/u/dlmetzgerbcch)\
**Post date:** [October 6, 2026, 7:05pm UTC](https://community.thunkable.com/t/cant-get-web-viewer-to-show-raw-html-using-url-or-web-viewer-extension-using-post-in-thunkable-live/4109013/1 "2026-10-06T19:05:37Z")

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Hi All,

I don’t think I’ve seen a recent question or solution for this. My app creates raw HTML code for a table (with e.g. insulin doses), and the cell values are calculated in app (so I can’t use an HTML asset file). When I send to the WebViewer (via a URL block) and to the WebViewer Extension (via a POST block and an external website), these work perfectly in Thunkable online (which I assume means the HTML is fine). But with both Thunkable Live (for Android and iOS) and in TestFlight and with an APK, I just get a white screen. If I cut-and-paste the HTML into a Chrome browser, it also works fine.

Are there security issues with the devices that are blocking this, or any other solutions?

Thanks for your collective wisdom.

Thunkable online

 ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/f/3/f3e9cfec712ee006992c307ea73ade0590279dc1.png)

Thunkable Live (Android)

 ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/5/f/5fe9138b2dc9b403897b5582d481c98b5495a60a.png)
