[BUG] Frontend error when creating a V3 liquidity pool on Arbitrum Sepolia

[softwaremarkdahl]

Is there an existing issue for this?

• I have searched the existing issues

Product

Trade

Current Behavior

When I select 2 new tokens to create a V3 liquidity pool on Arbitrum Sepolia, the console starts giving this error, and the liquidity pool is not created:

Access to fetch at 'https://sepolia-rollup.arbitrum.io/rpc' from origin 'https://pancakeswap.finance' has been blocked by CORS policy: The 'Access-Control-Allow-Origin' header contains multiple values ',', but only one is allowed. Have the server send the header with a valid value, or, if an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.

Expected Behavior

Add 2 tokens to the list, select them to create a new liquidity pool, set starting price, and create the liquidity pool.

Steps To Reproduce

go to https://pancakeswap.finance/add?chain=arbSepolia
select 2 tokens and see errors in devtools console

Environment

- Device: iMac 21"
- OS: Sequoia 15.1.1
- Browser: chrome 131.0.6778.86
- Wallet: metamask 12.6.2

Anything else?

No response