CCIP-read fallback on network errors

[eth-limo]

Describe the Feature

Hello,

Per this thread: https://discuss.ens.domains/t/erc-3668-edge-case-for-clientside-http-ssl-errors/19617, it looks like network errors or non-http error responses can prevent CCIP clients from falling back to a secondary gateway URL. I believe this is also impacting the CCIP-read client in ethers.

This would be a great addition to ethers.js as user implemented offchain resolvers continue to grow.

Thanks!

Code Example

No response

[ricmoo]

Working on reproduction steps now, but if anyone has an existing CCIP-read contract set up that can replicate this issue, it'd be appreciated. :)

[ricmoo]

I've recreated the original CCIP-Read Test Contract; the original source was lost, but the new version should be completely compatible. It also now has a test to reproduce the problem in this issue, so a fix should be available soon.

Please see the test contract.

[ricmoo]

This has been fixed in v6.13.3.

Let me know if you still have any issue!

Thanks! :)

[eth-limo]

Thanks @ricmoo!