I've followed the instructions for installing ethereumjs testrpc (https://github.com/ethereumjs/testrpc)
I'm on macOS so I have
XCode Command Line Tools installed.
npm install -g ethereumjs-testrpc completed without error.
which testrpc returns
Then I run
testrpc and no error occurs and it states
Listening on localhost:8545
When I navigate to localhost:8545 I get
400 Bad Request.
I haven't done anything yet and I'm not sure why this is happening. Has anyone else come up against this issue when installing ethereumjs testrpc