HTML view not working

today on all my plain HTML repls, in the editor the webview is blank.
The error that appears is:
“framework-2ff0b62030a2cbdb.js:1 Error while parsing the ‘sandbox’ attribute: ‘allow-downloads-without-user-activation’ is an invalid sandbox flag.”

Expected behavior:
To see the repl in the webview preview

Actual behavior:
The webview is blank

Steps to reproduce:
Load any plain html/css/js repi in the editor

Bug appears at this link:

Chrome Version 108.0.5359.99 (Official Build) (64-bit)
HP Pavilion all in one laptop

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If you view the repl webview in a new window - it works BTW.

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This appears to be working again, and the sandbox error does not seem to be associated with the webview not rendering.

Very strange. We’ve heard of reports of this happening intermittently. Will keep this open in case someone else has a reproducible example if they run into this.


Were you able to use the „custom domain“, settings, and/or „open external page“ buttons?

Because I have been experiencing this same behaviour on my iPhone with the „custom domain“ and „open external page“ buttons still working, but the settings not opening.

This is still happing today intermittently. There doesn’t seem to be anything different about these cases, it’s as if the site is under load and not responding sometimes.

It seems to be working on the cover page:

Are you able to view


This error happened for me earlier. Chrome browser on Mach + tethering wifi from my phone.

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I had this same problem earlier while using React, but now it’s working.

If this ever happens, you could have the Repl run in a different browser window next to your main window where you edit your code.

Are you able to access

I can(lol im so late)

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