Handle visual bug with multiple `/` in the base path and the request

[minight]

When a target is supplied with a basepath of /, e.g. http://example.com/, we display a request being sent to http://example.com//foo.txt.

however, this appears to be a visual bug, as our http library will collapse consecutive //.

The duplication likely occurs when when we concat the basepath / with the / prefixed path, http://example.com/ + /foo.txt when printing the result.

it may be worthwhile either:

• ensuring the basepath does not end with a /.
• Using a http library that does not collapse consecutive //

Issue reported by @NayrGames on twitter.