From 0198f446d42f7b4661f8e3c43770ebd317ba466d Mon Sep 17 00:00:00 2001
From: or-else <or.else@gmail.com>
Date: Tue, 30 Oct 2018 22:31:10 +0300
Subject: [PATCH] service worker fetch event for Add To Home Screen

---
 service-worker.js        | 16 ++++++++++++++++
 src/views/tinode-web.jsx |  3 ++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/service-worker.js b/service-worker.js
index b6131795..086c3d58 100644
--- a/service-worker.js
+++ b/service-worker.js
@@ -67,3 +67,19 @@ self.addEventListener('notificationclick', function(event) {
 
   event.waitUntil(promises);
 });
+
+// This is needed for 'Add to Home Screen'.
+self.addEventListener('fetch', function (event) {
+	event.respondWith(
+    //  Try to find response in cache.
+    caches.match(event.request)
+    .then((resp) => {
+      // If response is found in cache, return it. Otherwise fetch.
+      return resp || fetch(event.request);
+    })
+    .catch((err) {
+      // Something went wrong.
+      console.error("Service worker Fetch: ", err);
+    })
+  );
+});
diff --git a/src/views/tinode-web.jsx b/src/views/tinode-web.jsx
index 07aeec8e..17d2cb69 100644
--- a/src/views/tinode-web.jsx
+++ b/src/views/tinode-web.jsx
@@ -829,7 +829,8 @@ class TinodeWeb extends React.Component {
         params.public = pub;
       }
       if (priv) {
-        params.private = {comment: priv};
+        params.private = (priv === Tinode.DEL_CHAR) ?
+          Tinode.DEL_CHAR : {comment: priv};
       }
       if (permissions) {
         params.defacs = permissions;