Allow setting default stream tab

client/coral-embed-stream/src/components/Stream.js

@@ -37,10 +37,18 @@ class Stream extends React.Component {
       this.setState({keepCommentBox: true});
     }
 
-    if (next.activeStreamTab !== 'all') {
-      const slotPlugins = this.getSlotComponents('streamTabs', next).map((c) => c.talkPluginName);
-      if (slotPlugins.indexOf(next.activeStreamTab) === -1) {
-        next.setActiveStreamTab('all');
+    this.fallbackAllTab(next);
+  }
+
+  componentDidMount() {
+    this.fallbackAllTab();
+  }
+
+  fallbackAllTab(props = this.props) {
+    if (props.activeStreamTab !== 'all') {
+      const slotPlugins = this.getSlotComponents('streamTabs', props).map((c) => c.talkPluginName);
+      if (slotPlugins.indexOf(props.activeStreamTab) === -1) {
+        props.setActiveStreamTab('all');
       }
     }
   }

client/coral-embed-stream/src/reducers/stream.js

@@ -21,7 +21,7 @@ const initialState = {
   assetUrl: getQueryVariable('asset_url') || '',
   commentId: getQueryVariable('comment_id') || '',
   commentClassNames: [],
-  activeTab: 'all',
+  activeTab: process.env.TALK_DEFAULT_STEAM_TAB,
   previousTab: '',
 };
 

webpack.config.js

@@ -109,7 +109,8 @@ const config = {
     }),
     new webpack.EnvironmentPlugin({
       'TALK_PLUGINS_JSON': '{}',
-      'TALK_THREADING_LEVEL': '3'
+      'TALK_THREADING_LEVEL': '3',
+      'TALK_DEFAULT_STEAM_TAB': 'all',
     })
   ],
   resolveLoader: {