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feat: implement fiber wasm demo #367

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feat: implement fiber wasm demo #367

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21b28d3
feat: implement fiber wasm demo
ashuralyk Apr 16, 2026
b6ff57b
feat: use external wallet to sign fiber transaction
ashuralyk Apr 22, 2026
59a6992
Apply suggestions from code review
ashuralyk Apr 27, 2026
b96529d
chore: upgrade version to 0.8.1
ashuralyk Apr 29, 2026
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18 changes: 18 additions & 0 deletions packages/demo/next.config.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,24 @@ const nextConfig = {
experimental: {
optimizePackageImports: ["@ckb-ccc/core", "@ckb-ccc/core/bundle"],
},
// SharedArrayBuffer (required by @nervosnetwork/fiber-js WASM) needs
// Cross-Origin-Opener-Policy: same-origin + COEP on the page.
//
// COOP: same-origin severs window.opener in cross-origin wallet popups
// (JoyID, etc.), so it is applied only to /connected/Fiber where the WASM
// runs. Wallet signing is delegated to /fiber-sign-proxy (a same-origin
// popup with no COOP) that relays the signature back via BroadcastChannel.
async headers() {
return [
{
source: "/(.*)",
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@gemini-code-assist gemini-code-assist Bot Apr 16, 2026

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high

The source pattern /(.*) applies the COOP and COEP headers to all routes. However, the comments on lines 9-12 state that these headers should only be applied to /connected/Fiber because they break cross-origin wallet popups (like JoyID) used on other pages. Applying these headers globally will break wallet functionality for the rest of the application, including the /fiber-sign-proxy mentioned in the comments.

Suggested change
source: "/(.*)",
source: "/connected/Fiber",

headers: [
{ key: "Cross-Origin-Opener-Policy", value: "same-origin" },
{ key: "Cross-Origin-Embedder-Policy", value: "require-corp" },
],
},
];
},
};

export default nextConfig;
1 change: 1 addition & 0 deletions packages/demo/package.json
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Expand Up @@ -36,6 +36,7 @@
"@eslint/eslintrc": "^3.3.1",
"@headlessui/react": "^2.2.7",
"@heroicons/react": "^2.2.0",
"@nervosnetwork/fiber-js": "0.8.1",
"@scure/bip32": "^2.0.0",
"@scure/bip39": "^2.0.0",
"@tailwindcss/postcss": "^4.1.12",
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