Adding try/catch block around getComputedtextLength.

Adding white-space:nowrap to nvtooltip.

nv.d3.js

@@ -4685,9 +4685,15 @@ nv.models.indentedTree = function() {
         var seriesWidths = [];
         series.each(function(d,i) {
               var legendText = d3.select(this).select('text');
-              var svgComputedTextLength = legendText.node().getComputedTextLength() 
-                                         || nv.utils.calcApproxTextWidth(legendText);
-              seriesWidths.push(svgComputedTextLength + 28); // 28 is ~ the width of the circle plus some padding
+              var nodeTextLength;
+              try {
+                nodeTextLength = legendText.node().getComputedTextLength();
+              }
+              catch(e) {
+                nodeTextLength = nv.utils.calcApproxTextWidth(legendText);
+              }
+             
+              seriesWidths.push(nodeTextLength + 28); // 28 is ~ the width of the circle plus some padding
             });
 
         //nv.log('Series Widths: ', JSON.stringify(seriesWidths));

src/models/legend.js

@@ -73,9 +73,15 @@ nv.models.legend = function() {
         var seriesWidths = [];
         series.each(function(d,i) {
               var legendText = d3.select(this).select('text');
-              var svgComputedTextLength = legendText.node().getComputedTextLength() 
-                                         || nv.utils.calcApproxTextWidth(legendText);
-              seriesWidths.push(svgComputedTextLength + 28); // 28 is ~ the width of the circle plus some padding
+              var nodeTextLength;
+              try {
+                nodeTextLength = legendText.node().getComputedTextLength();
+              }
+              catch(e) {
+                nodeTextLength = nv.utils.calcApproxTextWidth(legendText);
+              }
+             
+              seriesWidths.push(nodeTextLength + 28); // 28 is ~ the width of the circle plus some padding
             });
 
         //nv.log('Series Widths: ', JSON.stringify(seriesWidths));

src/nv.d3.css

@@ -39,6 +39,8 @@
   text-align: left;
   pointer-events: none;
 
+  white-space: nowrap;
+
   -webkit-touch-callout: none;
   -webkit-user-select: none;
   -khtml-user-select: none;