[BUG] Cannot clear certain cache keys

[kf6nux]

This line alters keys that begin with a slash or contain more than one slash in a row.

E.g.1: A call to
/service/yourservice/purge//keyStartingWithASlash
becomes
/service/yourservice/purge/keyStartingWithASlash

E.g.2: A call to
/service/yourservice/purge/keyWithDouble//Slash
becomes
/service/yourservice/purge/keyWithDouble/Slash

It appears the intended behavior at this line is something more along the lines of "add or remove slashes as needed at the joined location when merging the host path with the api path" or in code: 57dedaf

Tangentially related:
Due to #14, it's worth noting that Fastly explicitly states that keys should not be URL encoded. If/when a fix for #14 does URL encode data parameters to the Fastly API, that fix must not URL encode cache keys.

[kf6nux]

Thanks for the merge @sethvargo ! I'll close this issue out.