cljs-ajax issue 257 reproduce

core.clj

(ns redirect_gist.core
  (:require [reitit.ring :as ring]
            [reitit.coercion.spec]
            [reitit.core :as r]
            [ring.adapter.jetty :as jetty]
            [ajax.core :refer [GET]]))

(def app
  (ring/ring-handler
    (ring/router
      [["/tempredirect" {:get {:responses {307 {:headers {:location string?}}}
                               :parameters {:headers {:x-test string?}}
                               :handler (fn [{:keys [headers uri]}]
                                          (println "Server response on noacceptheader: " headers " " uri)
                                          {:status 307
                                           :headers {"Location" "http://localhost:3000/noacceptheader"}})}}]
       ["/noacceptheader" {:get {:responses {200 {:body {:foo "bar"}}}
                                 :handler (fn [{:keys [headers uri]}]
                                            (println "Server response on noacceptheader: " headers " " uri)
                                            (if (get headers "x-test")
                                              {:status 500}
                                              {:status 200}))}}]])))
(defn start []
  (jetty/run-jetty #'app {:port 3000, :join? false}))

(defn handler [response]
  (println "Client response: " (str response)))

(defn redirect-behaviour []
  (GET "http://localhost:3000/tempredirect"
       {:headers {"x-test" "foo"}}))

(comment
  (def server (start))
  (redirect-behaviour)
  (.stop server))

deps.edn

{:deps {org.clojure/clojure {:mvn/version "1.10.2"}
        metosin/reitit {:mvn/version "0.5.12"}
        ring/ring-jetty-adapter {:mvn/version "1.7.1"}
        cljs-ajax {:mvn/version "0.8.1"}}}