undefined =/= ''

Signed-off-by: Michael Telatynski <[email protected]>

Author: t3chguy

src/components/structures/UserSettings.js

@@ -958,7 +958,7 @@ module.exports = React.createClass({
 
         const audioInputs = this.state.mediaDevices.audioinput.slice(0);
         if (audioInputs.length > 0) {
-            let defaultInput;
+            let defaultInput = '';
             if (!audioInputs.some((input) => input.deviceId === 'default')) {
                 audioInputs.unshift(defaultOption);
             } else {
@@ -978,7 +978,7 @@ module.exports = React.createClass({
 
         const videoInputs = this.state.mediaDevices.videoinput.slice(0);
         if (videoInputs.length > 0) {
-            let defaultInput;
+            let defaultInput = '';
             if (!videoInputs.some((input) => input.deviceId === 'default')) {
                 videoInputs.unshift(defaultOption);
             } else {