cyril
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cyril
After some investigation it seems that it's related [to this file](https://github.com/nuxt/learn.nuxt.com/blob/842b826837f7dfe150e2bb2a0b60a895668f654d/components/MainPlayground.vue#L126) using `credentialless` on the iframe which is currently experimental and [not supported on Firefox](https://developer.mozilla.org/en-US/docs/Web/Security/IFrame_credentialless).