WebAssembly.Memory object cannot be serialized

Development Platform & Builds
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1

Hi all,

I’ve been getting this error:

DataCloneError: Worker.postMessage: The WebAssembly.Memory object cannot be serialized. The Cross-Origin-Opener-Policy and Cross-Origin-Embedder-Policy HTTP headers can be used to enable this.

I’m not a programmer so I don’t understand it, can anyone provide any insight?

screenshot

2

You need to enable those headers in your server.

Cross-Origin-Embedder-Policy: require-corp
Cross-Origin-Opener-Policy: same-origin

Configure these before the workers can be ran. This is only supported in Chromium derived browsers and Firefox.

3

Does not work on firefox even if the Cross-Origin values are set in vite.configjs