fix issue 5290 - check before slice

Author: archmoj

src/plot_api/plot_api.js

@@ -1948,7 +1948,9 @@ function axRangeSupplyDefaultsByPass(gd, flags, specs) {
         var axIn = gd.layout[axName];
         var axOut = fullLayout[axName];
         axOut.autorange = axIn.autorange;
-        axOut.range = axIn.range.slice();
+        if(axIn.range) {
+            axOut.range = axIn.range.slice();
+        }
         axOut.cleanRange();
 
         if(axOut._matchGroup) {