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fix(playground): check the browser can run the VM before downloading #129

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Merged
raphaelvigee merged 1 commit into from
Oct 24, 2026
Merged

fix(playground): check the browser can run the VM before downloading #129

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5 changes: 5 additions & 0 deletions website/src/components/playground/vm.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -194,6 +194,11 @@ export async function bootPlayground(
onProgress: (p: Progress) => void,
signal: AbortSignal,
): Promise<Booted> {
// Load the VM runtime first: it rejects with `unsupported-browser` where
// the VM can't run, before a couple hundred MB of downloads.
const { Arm64JS } = await import('arm64js');
await Arm64JS.mode();

// --- download, one asset at a time ---------------------------------------
const names = [release.binary, ...release.plugins.flatMap((p) => [p.manifest, p.lib])];
const total = names.reduce((n, name) => n + (release.sizes[name] ?? 0), 0);
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