Custom WYSIWYG editor not rendering

[gmarraro-ellevest]

I've created a custom WYSIWYG editor with Froala-React and everything is working fine when I run it through localhost. However, when I set it up as an extension in Contentful, the extension appears to be rendering (as seen in the dev tools), but nothing is actually showing up on the screen. Two errors I'm getting are:

Uncaught DOMException: Failed to set the 'cookie' property on 'Document': The document is sandboxed and lacks the 'allow-same-origin' flag. at http://localhost:8080/bundle.js:11237:138801 at new Ee.FE.MODULES.data (http://localhost:8080/bundle.js:11237:138898) at s.load (http://localhost:8080/bundle.js:11237:4692) at s.<anonymous> (http://localhost:8080/bundle.js:11237:2021) at HTMLDivElement.proxy (http://localhost:8080/bundle.js:10635:14) at HTMLDivElement.dispatch (http://localhost:8080/bundle.js:5755:92) at HTMLDivElement.elemData.handle (http://localhost:8080/bundle.js:5560:104) at Object.trigger (http://localhost:8080/bundle.js:8714:13) at HTMLDivElement.<anonymous> (http://localhost:8080/bundle.js:8786:18) at Function.each (http://localhost:8080/bundle.js:1155:19)

bundle.js:15292 TypeError: Cannot read property 'off' of undefined at t.value (bundle.js:11476) at t.value (bundle.js:11451) at Wg (bundle.js:15306) at Xg (bundle.js:15364) at Xh (bundle.js:15648) at Rh (bundle.js:15588) at Uh (bundle.js:15572) at Sh (bundle.js:15567) at wh (bundle.js:15548) at kg (bundle.js:15504)

...but I'm not sure if that's my main problem.

This is all that's rendering now:

Any ideas?

[floelhoeffel]

It seems like your extension tries to set a local cookie which is not allowed by the policy of the iframe. Its actually in your error message:

Uncaught DOMException: Failed to set the 'cookie' property on 'Document': The document is sandboxed and lacks the 'allow-same-origin' flag.

So for now you might try to deactivate that in your editor. We are currently trying to apply a more flexible policy so setting a cookie might become possible. I keep you posted.