error 502 and CORS

[nad010286]

I create some listeners to handle event emitted from Smart Contract and error happens:
Access to XMLHttpRequest at 'https://api.trongrid.io/event/contract/TGRcjrgNX2w3yJ8HZkGVEZAxza7fJSTSXB/LoseBet/latest?size=20&page=1&since=1560624083457&fromTimestamp=1560624083457&sort=block_timestamp' from origin 'http://localhost:3000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

https://api.trongrid.io/event/contract/TGRcjrgNX2w3yJ8HZkGVEZAxza7fJSTSXB/LoseBet/latest?size=20&page=1&since=1560624083457&fromTimestamp=1560624083457&sort=block_timestamp
Return empty Array

But when I manually change to
https://api.trongrid.io/event/contract/TGRcjrgNX2w3yJ8HZkGVEZAxza7fJSTSXB/LoseBet/?fromTimestamp=1560624083457&sort=block_timestamp
it returns data

You can check because this is on MAINNET. Thanks

[sullof]

I don't know why the CORS issues happens, but the CORS configuration is definitely correct (otherwise nobody would be able to use TronGrid from any dApp).

About your empty result example, you are putting together parameters that are not compatible. Specifically, latest is not recognized in that format.

Anyway, I think that there is a bug. Because using the v1 format:
https://api.trongrid.io/v1/contracts/TGRcjrgNX2w3yJ8HZkGVEZAxza7fJSTSXB/events?event_name=LoseBet&block_number=10564249
should return data.

I will try to fix it. Thanks