This doesn't occur with 1.10.597
It’s a bit odd that this only occurs with static-fns true. All the warnings appear to come from :imports.
Look more closely the warnings from clojure.browser.net are almost certainly from the typehints. We hint this. The warnings from clojure.brower.repl are also because we know the type of the first argument.
So now we have an idea what to look for.