feat(js): Dynamic Actioncable WebSocket URL

Allow createWebSocketURL fn to accept a function to generate the websocket URL rather than a string.

1 files changed, 8 insertions, 0 deletions

diff --git a/actioncable/test/javascript/src/unit/action_cable_test.js b/actioncable/test/javascript/src/unit/action_cable_test.js
index 83426fa32e..c9d34abc6d 100644
--- a/actioncable/test/javascript/src/unit/action_cable_test.js
+++ b/actioncable/test/javascript/src/unit/action_cable_test.js
@@ -41,5 +41,13 @@ module("ActionCable", () => {
 
       assert.equal(consumer.url, testURL)
     })
+
+    test("uses function to generate URL", assert => {
+      const generateURL = () => {
+        return testURL
+      }
+      const consumer = ActionCable.createConsumer(generateURL)
+      assert.equal(consumer.url, testURL)
+    })
   })
 })