fix disasters ui notifications

Author: William Hou

SingularityUI/app/actions/api/base.es6

@@ -89,6 +89,11 @@ export function buildApiAction(actionName, opts = {}, keyFunc = undefined) {
             return Promise.resolve();
           }
           if (response.headers.get('Content-Type') === 'application/json') {
+            // void response cannot be parsed as JSON
+            if (response.headers.get('Content-Length') === '0') {
+              return Promise.resolve();
+            }
+
             return response.json();
           }
           return response.text();

SingularityUI/app/components/disasters/LiveConfiguration.jsx

@@ -84,12 +84,14 @@ function mapDispatchToProps(dispatch) {
   return {
     enableRackSensitivity: () => dispatch(EnableRackSensitivity.trigger()).then(() => {
       Messenger().info({
-        message: `Enabled rack sensitivity.`
+        message: `Enabled rack sensitivity.`,
+        hideAfter: 5,
       });
     }),
     disableRackSensitivity: () => dispatch(DisableRackSensitivity.trigger()).then(() => {
       Messenger().info({
-        message: `Disabled rack sensitivity.`
+        message: `Disabled rack sensitivity.`,
+        hideAfter: 5,
       });
     }),
     overridePlacementStrategy: strategy => dispatch(OverridePlacementStrategy.trigger(strategy)).then(() => {
@@ -98,7 +100,8 @@ function mapDispatchToProps(dispatch) {
         : `Cleared default placement strategy override`;
 
       Messenger().info({
-        message
+        message,
+        hideAfter: 5,
       });
     }),
   }

SingularityUI/app/reducers/api/index.es6

@@ -1,5 +1,6 @@
 import _ from 'underscore';
 import { combineReducers } from 'redux';
+import Messenger from 'messenger';
 import buildApiActionReducer from './base';
 import buildKeyedApiActionReducer from './keyed';