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Add WalletConnect: connect from any mobile browser (no dApp browser)

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Mobile users in a normal browser hit "no wallet found" because EIP-6963 only
sees injected/extension wallets. WalletConnect fixes it: the connect picker now
offers WalletConnect (auto-selected when no injected wallet is present), which
shows a QR on desktop and opens the wallet app directly on mobile — no in-app
dApp browser, no second login. Lazy-loads the @walletconnect/ethereum-provider
UMD from jsdelivr; the result is a plain EIP-1193 provider so sign/switch/buy are
unchanged. CSP widened for the SDK + WC relay. Project id lives in site config
(public value); gated so nothing changes until it's set.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
martbost
2026-09-08 07:36:07 -05:00
parent 93912fa621
commit f0e42e47bb
4 changed files with 44 additions and 5 deletions
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server.js
+1 -1
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@@ -162,7 +162,7 @@ const MIME = { '.html': 'text/html; charset=utf-8', '.css': 'text/css', '.js': '
'.png': 'image/png', '.jpg': 'image/jpeg', '.svg': 'image/svg+xml', '.webp': 'image/webp',
'.ico': 'image/x-icon', '.json': 'application/json', '.mp4': 'video/mp4', '.woff2': 'font/woff2',
'.gif': 'image/gif', '.webm': 'video/webm', '.txt': 'text/plain; charset=utf-8', '.xml': 'application/xml; charset=utf-8' };
const CSP = "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; img-src 'self' data: https:; media-src 'self' https: blob:; connect-src 'self'; font-src 'self' data: https://fonts.gstatic.com; form-action 'self'; frame-src https: http:";
const CSP = "default-src 'self'; script-src 'self' https://cdn.jsdelivr.net; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; img-src 'self' data: https:; media-src 'self' https: blob:; connect-src 'self' https://*.walletconnect.com wss://*.walletconnect.com https://*.walletconnect.org wss://*.walletconnect.org https://*.web3modal.org https://*.reown.com wss://*.reown.com; font-src 'self' data: https://fonts.gstatic.com; form-action 'self'; frame-src https: http:";
function baseHeaders(extra) {
return Object.assign({ 'Content-Security-Policy': CSP, 'X-Content-Type-Options': 'nosniff',
'Referrer-Policy': 'strict-origin-when-cross-origin' }, extra || {});