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fix: replace dead cloudflare-eth.com mainnet rpc preset - #12484

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fix/replace-dead-cloudflare-eth-rpc
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fix: replace dead cloudflare-eth.com mainnet rpc preset#12484
swkatmask wants to merge 1 commit into
developfrom
fix/replace-dead-cloudflare-eth-rpc

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@swkatmask

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Cloudflare is deprecating the legacy public cloudflare-eth.com gateway hostname — JSON-RPC calls now fail with -32046 Cannot fulfill request, so every client whose AB-test seed sticks them on that endpoint gets -32603 Internal error on all Mainnet read-only calls (there is no failover in ProviderURL.from).

Changes

  • packages/web3-shared/evm/src/constants/viem-chains.ts: replace the dead third Mainnet RPC entry with https://rpc.mevblocker.io (verified working with browser-compatible CORS: reflects any Origin, allows POST + Content-Type on preflight).
  • packages/plugins/Debugger/src/SiteAdaptor/components/ConnectionContent.tsx: stop hardcoding the dead URL in onAddNetwork; use ProviderURL.fromOfficial(ChainId.Mainnet) instead.

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vercel Bot commented Sep 10, 2026

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