From 6076dd97af3eace0b884af00bb99ee0d0742a25f Mon Sep 17 00:00:00 2001
From: Henri Bergius <henri.bergius@iki.fi>
Date: Tue, 28 Nov 2017 22:32:18 +0100
Subject: [PATCH] Handle situation where iframe already has the given URL open

---
 infodisplay/infodisplay.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/infodisplay/infodisplay.js b/infodisplay/infodisplay.js
index e2ab664..549332f 100644
--- a/infodisplay/infodisplay.js
+++ b/infodisplay/infodisplay.js
@@ -47,6 +47,13 @@ function DisplayParticipant(broker, role, defaultUrls, timer) {
       urls = indata;
       callback('urls', null, urls);
     }
+    if (next.getAttribute('src') === indata) {
+      // Already open!
+      next.id = 'current';
+      current.id = 'next';
+      callback('opened', null, next.getAttribute('src'));
+      return;
+    }
     next.onerror = (err) => {
       next.onload = null;
       next.onerror = null;