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Add Cross-Origin-Opener-Policy header to CSP documentation for AppKit social login security #604

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Add Cross-Origin-Opener-Policy header to CSP documentation for AppKit social login security #604

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2 changes: 1 addition & 1 deletion .cspell.json
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Expand Up @@ -39,7 +39,7 @@
"nosocial", "bitget", "leather", "binance", "uniswap", "safepal", "bybit", "phantom", "ledger", "timeless-x", "safe", "zerion", "oneinch", "crypto-com", "imtoken", "kraken", "ronin", "robinhood", "exodus", "argent", "tokenpocket", "Contractaddress",
"executionreverted", "FATF", "VASP", "LLMSTXT", "Frontmatter", "CASP", "DKMS", "hydradx", "phala", "astar", "mangata", "polkadotjs", "Dogecoin", "Blockbook", "vuejs", "xsmall", "rgba", "mintlify", "filteredwallets",
"tnum","minmax","toolkits", "autoplay", "Litoshi", "Litoshis", "encryptor's", "Everscale", "Bitcore", "satoshis", "Parachain", "Bitcore", "walletlist", "Userflow", "retryable", "USDS", "Arbitrum", "Wolfswap", "Halborn", "Pentest", "Spearbit", "valtio",
"reshare", "microstacks", "Prebuild", "APKT", "offchain"
"reshare", "microstacks", "Prebuild", "APKT", "offchain", "tabnabbing"
]
}

7 changes: 7 additions & 0 deletions advanced/security/content-security-policy.mdx
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Expand Up @@ -20,6 +20,7 @@ img-src * 'self' data: blob: https://walletconnect.org https://walletconnect.com
font-src 'self' https://fonts.gstatic.com;
connect-src 'self' https://rpc.walletconnect.com https://rpc.walletconnect.org https://relay.walletconnect.com https://relay.walletconnect.org wss://relay.walletconnect.com wss://relay.walletconnect.org https://pulse.walletconnect.com https://pulse.walletconnect.org https://api.web3modal.com https://api.web3modal.org https://keys.walletconnect.com https://keys.walletconnect.org https://notify.walletconnect.com https://notify.walletconnect.org https://echo.walletconnect.com https://echo.walletconnect.org https://push.walletconnect.com https://push.walletconnect.org wss://www.walletlink.org;
frame-src 'self' https://verify.walletconnect.com https://verify.walletconnect.org https://secure.walletconnect.com https://secure.walletconnect.org;
Cross-Origin-Opener-Policy: same-origin-allow-popups;
```

<Note>
Expand All @@ -30,6 +31,12 @@ For a full of list of RPC sources used by `wagmi/viem`, please refer to [Viem's

</Note>

<Note>

**Cross-Origin-Opener-Policy for Social Login Security**: The `Cross-Origin-Opener-Policy: same-origin-allow-popups` header is essential when using AppKit's social login features (Google, X, GitHub, Discord, Apple, Facebook, Farcaster). This header helps prevent tabnabbing attacks during OAuth flows by controlling how popup windows can interact with your application. Without this header, malicious sites could potentially hijack the authentication flow and redirect users to phishing pages.

</Note>

## Testing and Deploying Your CSP

### Test Your CSP in a Staging Environment
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