I've got the smart contract deployed on a testnet. OpenZeppelin has worked really well. I can see the token generated on Opensea testnet in the account. No description or image. The tokenURI loads correctly. What's the best way to test data returned in tokenURI?
web browser. Check the json.
Yeah that's what I was doing. Opensea wasn't loading it. I had a webpage outputting the JSON. I took that output and dropped it into a static *.json file and then Opensea loaded it. They must be checking the headers.