Remove "Display secure content only" option

allowDisplayingInsecureContent is removed in Electron 1.6.
And it's no longer necessary to show http contents in https server.

src/browser/components/MainPage.jsx

@@ -36,7 +36,6 @@ const styles = {
 
 const MainPage = React.createClass({
   propTypes: {
-    disablewebsecurity: React.PropTypes.bool.isRequired,
     onUnreadCountChange: React.PropTypes.func.isRequired,
     teams: React.PropTypes.array.isRequired,
     onTeamConfigChange: React.PropTypes.func.isRequired,
@@ -291,7 +290,6 @@ const MainPage = React.createClass({
           style={self.visibleStyle(isActive)}
           src={team.url}
           name={team.name}
-          disablewebsecurity={this.props.disablewebsecurity}
           onTargetURLChange={self.handleTargetURLChange}
           onUnreadCountChange={handleUnreadCountChange}
           onNotificationClick={handleNotificationClick}

src/browser/components/MattermostView.jsx

@@ -12,7 +12,6 @@ const preloadJS = `file://${remote.app.getAppPath()}/browser/webview/mattermost_
 
 const MattermostView = React.createClass({
   propTypes: {
-    disablewebsecurity: React.PropTypes.bool,
     name: React.PropTypes.string,
     id: React.PropTypes.string,
     onTargetURLChange: React.PropTypes.func,
@@ -38,12 +37,6 @@ const MattermostView = React.createClass({
     var self = this;
     var webview = findDOMNode(this.refs.webview);
 
-    // This option allows insecure content, when set to true it is possible to
-    // load content via HTTP while the mattermost server serves HTTPS
-    if (this.props.disablewebsecurity === true) {
-      webview.setAttribute('webpreferences', 'allowDisplayingInsecureContent');
-    }
-
     webview.addEventListener('did-fail-load', (e) => {
       console.log(self.props.name, 'webview did-fail-load', e);
       if (e.errorCode === -3) { // An operation was aborted (due to user action).
@@ -218,10 +211,6 @@ const MattermostView = React.createClass({
         errorInfo={this.state.errorInfo}
       />) : null;
 
-    // 'disablewebsecurity' is necessary to display external images.
-    // However, it allows also CSS/JavaScript.
-    // So webview should use 'allowDisplayingInsecureContent' as same as BrowserWindow.
-
     // Need to keep webview mounted when failed to load.
     return (
       <div>

src/browser/components/SettingsPage.jsx

@@ -107,7 +107,6 @@ const SettingsPage = React.createClass({
       teams: this.state.teams,
       showTrayIcon: this.state.showTrayIcon,
       trayIconTheme: this.state.trayIconTheme,
-      disablewebsecurity: this.state.disablewebsecurity,
       version: settings.version,
       minimizeToTray: this.state.minimizeToTray,
       notifications: {
@@ -151,12 +150,6 @@ const SettingsPage = React.createClass({
   handleCancel() {
     backToIndex();
   },
-  handleChangeDisableWebSecurity() {
-    this.setState({
-      disablewebsecurity: this.refs.disablewebsecurity.props.checked
-    });
-    setImmediate(this.startSaveConfig);
-  },
   handleChangeShowTrayIcon() {
     var shouldShowTrayIcon = !this.refs.showTrayIcon.props.checked;
     this.setState({
@@ -272,21 +265,6 @@ const SettingsPage = React.createClass({
         </Checkbox>);
     }
 
-    options.push(
-      <Checkbox
-        key='inputDisableWebSecurity'
-        id='inputDisableWebSecurity'
-        ref='disablewebsecurity'
-        checked={!this.state.disablewebsecurity}
-        onChange={this.handleChangeDisableWebSecurity}
-      >{'Display secure content only'}
-        <HelpBlock>
-          {'If enabled, the app only displays secure (HTTPS/SSL) content.'}
-          {' '}
-          {'If disabled, the app displays secure and non-secure (HTTP) content such as images.'}
-        </HelpBlock>
-      </Checkbox>);
-
     if (process.platform === 'darwin' || process.platform === 'win32') {
       const TASKBAR = process.platform === 'win32' ? 'taskbar' : 'Dock';
       options.push(

src/browser/index.jsx

@@ -95,7 +95,6 @@ const initialIndex = parsedURL.query.index ? parseInt(parsedURL.query.index, 10)
 
 ReactDOM.render(
   <MainPage
-    disablewebsecurity={AppConfig.data.disablewebsecurity}
     teams={AppConfig.data.teams}
     initialIndex={initialIndex}
     onUnreadCountChange={showUnreadBadge}

src/common/settings.js

@@ -18,7 +18,6 @@ function loadDefault(version) {
       teams: [],
       showTrayIcon: false,
       trayIconTheme: 'light',
-      disablewebsecurity: true,
       minimizeToTray: false,
       version: 1,
       notifications: {