Merge pull request #701 from contactashish13/issue-700

Changing the viewport or resizing the window causes annotation-based charts to show an error

Author: rodica-andronache

js/render-google.js

@@ -12,6 +12,16 @@ var __visualizer_chart_images   = [];
     var rendered_charts = [];
 
 	function renderChart(id) {
+        var chart = all_charts[id];
+        var hasAnnotation = false;
+        if(id !== 'canvas' && typeof chart.series !== 'undefined' && typeof chart.settings.series !== 'undefined'){
+            hasAnnotation = chart.series.length - chart.settings.series.length > 1;
+        }
+        // re-render the chart only if it doesn't have annotations and it is on the front-end
+        // this is to prevent the chart from showing "All series on a given axis must be of the same data type" during resize.
+        if(hasAnnotation){
+            return;
+        }
         renderSpecificChart(id, all_charts[id]);
     }