Changed the export options and resources for charts so as to not involve a third-party server for image exports.

 - Legacy-Id: 11947

Author: levkowetz

ietf/bower.json

@@ -41,6 +41,7 @@
 	  "highstock.js",
 	  "highmaps.js",
 	  "modules/exporting.js",
+	  "modules/offline-exporting.js",
 	  "modules/map.js"
 	]
     }

ietf/externals/static/highcharts/modules/offline-exporting.js

@@ -700,6 +700,9 @@ def skip_unreadable_post(record):
     "credits": {
         "enabled": False,
     },
+    "exporting": {
+        "fallbackToExportServer": False,
+    },
     "rangeSelector" : {
         "selected": 5,
         "allButtonsEnabled": True,
@@ -739,6 +742,9 @@ def skip_unreadable_post(record):
     "credits": {
         "enabled": False,
     },
+    "exporting": {
+        "fallbackToExportServer": False,
+    },
     "navigation": {
         "buttonOptions": {
             "enabled": False,

ietf/settings.py

@@ -7,6 +7,7 @@
 {% block js %}
       <script src="{% static 'highcharts/highstock.js' %}"></script>
       <script src="{% static 'highcharts/modules/exporting.js' %}"></script>
+      <script src="{% static 'highcharts/modules/offline-exporting.js' %}"></script>
       <script>
 	$(function () {
 	    var chart;