More reliable way to detect read-only team

www/common/drive-ui.js

@@ -3364,7 +3364,7 @@ define([
             if (APP.readOnly) {
                 // Read-only drive (team?)
                 $content.prepend($readOnly.clone());
-            } else if (folders[sfId] && folders[sfId].readOnly) {
+            } else if (sfId && folders[sfId] && folders[sfId].readOnly) {
                 // If readonly shared folder...
                 $content.prepend($readOnly.clone());
                 readOnlyFolder = true;

www/teams/inner.js

@@ -297,7 +297,7 @@ define([
 
             // Provide secondaryKey
             var teamData = (privateData.teams || {})[id] || {};
-            driveAPP.readOnly = !teamData.secondaryKey;
+            driveAPP.readOnly = !teamData.hasSecondaryKey;
             var drive = DriveUI.create(common, {
                 proxy: proxy,
                 folders: folders,