Avoid double slash in url when client hostname has tailing slash

[hanabi1224]

When GRPC client hostname has tailing '/', the final request url contains '//' which cannot be processed properly by some servers, e.g. grpc-dotnet-web

[stanley-cheung]

I am so sorry. I keep looking at this and thought, how would this compile? I will have to look up what this URL class is and how it will compile, in C++. Only did I suddenly realize - it's generated code. This is a javascript class. facepalm.

Thanks for the contribution. But tests failed. I believe there's a missing comma after toString().

Sorry about the delay.

[hanabi1224]

Good catch! Fixed, please take another look

[stanley-cheung]

LGTM, and thanks for the contribution!

[Fl0pZz]

@stanley-cheung @hanabi1224 this PR drop support uri like: https://example.com/api/grpc/v1/...

See examples:
https://developer.mozilla.org/en-US/docs/Web/API/URL/URL

[stanley-cheung]

@Fl0pZz sorry I am a bit unclear on this - do you mean that you are passing the hostname parameter with the 3 dots at the end?

[Fl0pZz]

@Fl0pZz sorry I am a bit unclear on this - do you mean that you are passing the hostname parameter with the 3 dots at the end?

Nope :)
I mean host name like this:
Hostname: https://example.com/api/grpc/v1

And in browser dev tools i see request: https://example.com/api/grpc/v1/MyProject.listEntities

[stanley-cheung]

@Fl0pZz and what's wrong with the above?

[Fl0pZz]

@Fl0pZz and what's wrong with the above?

From mdn: https://developer.mozilla.org/en-US/docs/Web/API/URL/URL

const hostname = 'https://example.com/api/grpc/v1';
const uri = new URL('/MyProject.listEntities', hostname);

console.log(uri.toString()) // -> https://example.com/MyProject.listEntities

however i expected https://example.com/api/grpc/v1/MyProject.listEntities