1 files changed, 16 insertions, 19 deletions

diff --git a/web/react/utils/utils.jsx b/web/react/utils/utils.jsx
index f718f7435..5266b1381 100644
--- a/web/react/utils/utils.jsx
+++ b/web/react/utils/utils.jsx
@@ -289,7 +289,6 @@ function getYoutubeEmbed(link) {
         $('.video-uploader.' + youtubeId).html(metadata.channelTitle);
         $('.video-title.' + youtubeId).find('a').html(metadata.title);
         $('.post-list-holder-by-time').scrollTop($('.post-list-holder-by-time')[0].scrollHeight);
-        $('.post-list-holder-by-time').perfectScrollbar('update');
     }
 
     if (config.GoogleDeveloperKey) {
@@ -604,23 +603,6 @@ module.exports.splitFileLocation = function(fileLocation) {
     return {ext: ext, name: filename, path: filePath};
 };
 
-// Asynchronously gets the size of a file by requesting its headers. If successful, it calls the
-// provided callback with the file size in bytes as the argument.
-module.exports.getFileSize = function(url, callback) {
-    var request = new XMLHttpRequest();
-
-    request.open('HEAD', url, true);
-    request.onreadystatechange = function onReadyStateChange() {
-        if (request.readyState === 4 && request.status === 200) {
-            if (callback) {
-                callback(parseInt(request.getResponseHeader('content-length'), 10));
-            }
-        }
-    };
-
-    request.send();
-};
-
 module.exports.toTitleCase = function(str) {
     function doTitleCase(txt) {
         return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();
@@ -782,7 +764,7 @@ function switchChannel(channel, teammateName) {
 
     AsyncClient.getChannels(true, true, true);
     AsyncClient.getChannelExtraInfo(true);
-    AsyncClient.getPosts(true, channel.id, Constants.POST_CHUNK_SIZE);
+    AsyncClient.getPosts(channel.id);
 
     $('.inner__wrap').removeClass('move--right');
     $('.sidebar--left').removeClass('move--right');
@@ -1004,6 +986,21 @@ module.exports.isBrowserFirefox = function() {
     return navigator && navigator.userAgent && navigator.userAgent.toLowerCase().indexOf('firefox') > -1;
 };
 
+// Checks if browser is IE10 or IE11
+module.exports.isBrowserIE = function() {
+    if (window.navigator && window.navigator.userAgent) {
+        var ua = window.navigator.userAgent;
+
+        return ua.indexOf('Trident/7.0') > 0 || ua.indexOf('Trident/6.0') > 0;
+    }
+
+    return false;
+};
+
+module.exports.isBrowserEdge = function() {
+    return window.naviagtor && navigator.userAgent && navigator.userAgent.toLowerCase().indexOf('edge') > -1;
+};
+
 // Used to get the id of the other user from a DM channel
 module.exports.getUserIdFromChannelName = function(channel) {
     var ids = channel.name.split('__');