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Consider supporting WebAssembly in Shared Storage worklets more robustly #153

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pythagoraskitty opened this issue Apr 25, 2024 · 1 comment

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@pythagoraskitty
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Currently, shared storage worklets support use of WebAssembly if the WASM bytes are passed in e.g. as an Uint8Array member of the data object in a worklet operation, of if they are hard-coded inside the worklet operation's definition. Fetching the bytes cannot take place within the worklet, nor can importing any files.

Similarly, any accompanying JavaScript glue code needed to run the WASM cannot be imported into the shared storage module in a traditional sense and so must either be written in the shared storage module itself or else passed in as a string member of the data object in a worklet operation, then evaluated inside the operation.

We understand that the current support for WebAssembly in Shared Storage may not be ideal, and would like to know if there would be interest in us implementing a more robust solution.

For instance, Protected Audience allows developers to provide a biddingWasmHelperURL pointing to a WebAssembly binary, and the browser takes care of the fetch and instantiation of a WebAssembly.Module that it then makes available to the bidding worklet's JavaScript.

Please let us know what you think. Thank you.

@dmdabbs
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dmdabbs commented Jul 11, 2024

Passing bytes &c as described is awkward. This would be a useful improvement.

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