intercom stopped working in play/learn sites

[ainvoner]

I tried this:

open learn/play sites and see the intercom widget

This happened:

there is no intercom widget

I expected this:

to have intercom :)

Is there a workaround?

no

Component

Playground

Wing Version

No response

Node.js Version

No response

Platform(s)

MacOS

Anything else?

probably related to headers update in https://github.com/winglang/playground/commit/d00366e25d1ff4e43b6f0b2e886e80a03789fb74

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[ekeren]

notice that it doesn't work for dynamic domains as well - e.g. https://9qb2ivlkj4.learn-ext.winglang.io/

[skyrpex]

The webcontainers only work in secure browser contexts. To enable secure contexts, the files we serve from our server must include a Cross-Origin-Embedder-Policy=require-corp or Cross-Origin-Embedder-Policy=credentialless. If require-corp is used, the page will only be able to load scripts, images and videos that return some specific headers. On the other hand, by using credentiallesss, we can still use scripts, images and videos securely.

We use require-corp and not credentialless because it's only implemented in Chromium-based browsers. Our analytics stack uses the segment cdn (and other cdns) to download the scripts, and they don't include the headers we need.

I thought that one solution would be to proxy the segment cdn, but we can't since there's multiple cdns and we don't have control over it. So it's a no go.

The only solution that comes to mind is to fine-tune each of the analytics solution we want to include. For example, adding Intercom manually and checking their cdn settings to see if we can either configure their HTTP headers, or self-host the intercom assets.

[skyrpex]

There's some info here:

• https://blog.stackblitz.com/posts/cross-browser-with-coop-coep/
• https://developer.stackblitz.com/platform/webcontainers/browser-support

[ainvoner]

@skyrpex if we will use the backend solution for all browsers that are not chrome, would it be possible to set the analytics properly for all?

[skyrpex]

Yeah. The backend solution doesn't require webcontainers nor these secure contexts.

[ekeren]

YIKES!

[ekeren]

@skyrpex, have you seen this?
segmentio/analytics-next#841

[ainvoner]

moving back to use fly.io backend for non chrome based browsers.
issue was resolved