I've installed ethereumjs-testrpc and I'm running it with testrpc in my terminal, which I'm pretty sure is working because it outputs Listening on localhost:8545 after listing all the test accounts' addresses and private keys.
Now I'd like to test some of my contracts on Remix, and I'm setting the "Environment" field (in the "Run" tab) to "Web3 Provider", but when I use the default input of http://localhost:8545 for the provider endpoint, Remix spits out "Not possible to connect to the Web3 provider. Make sure the provider is running and a connection is open (via IPC or RPC)."
Am I missing any steps in setting this up correctly, or is Remix not supposed to be used with testrpc? Thanks
Best Answer
This answer in another thread solved it to me.
Basically the problem occurs when you use HTTPS version of Remix, which makes the browser block localhost because of mixed content (HTTP inside HTTPS).
If you use HTTP version of Remix, it works fine.