Hello, all! I’m trying to use portal inside a cljs repl, and stumbled into an error that I ran into the first time I tried a couple of months ago and got stuck. In a cljs repl, I get this error:

(require '[portal.web :as p])
=> nil
(def po (p/open))

Execution error (TypeError) at (<cljs repl>:1).
Cannot set properties of null (setting 'onunload')
=> :repl/exception!