Merge pull request #4371 from nightscout/wip/allow_speech_on_ios

Improvement: causes client to say Ok Ok when the alarm test button is…

lib/client/index.js

@@ -1046,6 +1046,14 @@ client.load = function load(serverSettings, callback) {
   });
 
   $('#testAlarms').click(function(event) {
+
+    // Speech synthesis also requires on iOS that user triggers a speech event for it to speak anything
+    if (client.plugins('speech').isEnabled) {
+      var msg = new SpeechSynthesisUtterance('Ok ok.');
+      msg.lang = 'en-US';
+      window.speechSynthesis.speak(msg);
+    }
+
     d3.selectAll('.audio.alarms audio').each(function () {
       var audio = this;
       playAlarm(audio);