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Eagerly initialize Pyodide on page mount #277

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Merged
milanofthe merged 1 commit into from
May 4, 2026
Merged

Eagerly initialize Pyodide on page mount #277

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15 changes: 8 additions & 7 deletions src/routes/+page.svelte
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Original file line number Diff line number Diff line change
Expand Up @@ -502,17 +502,18 @@
const continueTooltip = { text: "Continue", shortcut: "Shift+Enter" };

onMount(() => {
// Auto-detect same-origin Flask backend (pip package mode), then check URL params
autoDetectBackend().then(() => initBackendFromUrl());

// Re-install runtime toolboxes from previous sessions and seed any
// preloaded catalog entries on first launch. Internally short-circuits
// when there's no work to do, so we can call it unconditionally.
// Bring up the Python backend the moment the page loads so the
// runtime is ready by the time the user clicks Run. Order matters:
// detect the active backend first, then initialise it, then run
// the toolbox bootstrap on top.
(async () => {
try {
await autoDetectBackend();
await initBackendFromUrl();
await initPyodide();
await bootstrapToolboxes();
} catch (e) {
console.error('[toolbox bootstrap]', e);
console.error('[startup]', e);
}
})();

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