Summary

In topology.go (v1.11.0) line 239 connection string t.cfg.URI is parsed with generic url.Parse(...) instead of connstring.Parse(...)

If connection string contains Percent Encoded Password reports error (as example)

parse "mongodb+srv://user:test%2F%40": invalid port ":test%2F%40" after host

in func (t *Topology) Connect() error {...} 

How to Reproduce

Is possible to reproduce using mongo Client Connect with a connection string with these characteristics

func TestURI(t *testing.T)

{   uri0 := "mongodb+srv://user:test%2F%40pwd@myatlasproject.mongodb.net/admin?retryWrites=true&w=majority"   uri, err := url.Parse(uri0)   // uri, err := connstring.Parse(uri0)   assert.NoError(t, err)   fmt.Println(uri) }

Additional Background

I suggest replacing the command in topology.go [line 239 in function Connect()]

uri, err := url.Parse(t.cfg.URI)

with 

uri, err := connstring.Parse(t.cfg.URI)

 

NOTE:

I have set the bug as a blocker because it does not allow me to keep the library up to date, but I don't know if it matches your priority criteria