replace parts[1] with pleaf,

etpinard · etpinard · commit 5ce20990bf64 · 2016-02-15T13:54:13.000-05:00
to handle case whers parts has only 1 entry.
diff --git a/src/plot_api/plot_api.js b/src/plot_api/plot_api.js
@@ -2246,7 +2246,7 @@ Plotly.relayout = function relayout(gd, astr, val) {
             else if(p.parts[0].indexOf('legend')!==-1) dolegend = true;
             else if(ai.indexOf('title')!==-1) doticks = true;
             else if(p.parts[0].indexOf('bgcolor')!==-1) dolayoutstyle = true;
-            else if(p.parts[1].indexOf('exponentbase' !== -1)) docalc = true;
+            else if(pleaf.indexOf('exponentbase' !== -1)) docalc = true;
             else if(p.parts.length>1 &&
                     Lib.containsAny(p.parts[1], ['tick', 'exponent', 'grid', 'zeroline'])) {
                 doticks = true;
