diff --git a/src/traces/scattergl/convert.js b/src/traces/scattergl/convert.js
index a0088cb696f..5a75c56cc26 100644
--- a/src/traces/scattergl/convert.js
+++ b/src/traces/scattergl/convert.js
@@ -59,7 +59,7 @@ function convertStyle(gd, trace) {
         opts.markerSel = convertMarkerSelection(trace, trace.selected);
         opts.markerUnsel = convertMarkerSelection(trace, trace.unselected);
 
-        if(!trace.unselected && Array.isArray(trace.marker.opacity)) {
+        if(!trace.unselected && Lib.isArrayOrTypedArray(trace.marker.opacity)) {
             var mo = trace.marker.opacity;
             opts.markerUnsel.opacity = new Array(mo.length);
             for(i = 0; i < mo.length; i++) {
@@ -187,15 +187,18 @@ function convertTextStyle(gd, trace) {
         optsOut.color = tfc;
     }
 
-    if(Array.isArray(tfs) || Array.isArray(tff)) {
+    if(Lib.isArrayOrTypedArray(tfs) || Array.isArray(tff)) {
         // if any textfont param is array - make render a batch
         optsOut.font = new Array(count);
         for(i = 0; i < count; i++) {
             var fonti = optsOut.font[i] = {};
 
-            fonti.size = Array.isArray(tfs) ?
-                (isNumeric(tfs[i]) ? tfs[i] : 0) :
-                tfs;
+            fonti.size = (
+                Lib.isTypedArray(tfs) ? tfs[i] :
+                Array.isArray(tfs) ? (
+                    isNumeric(tfs[i]) ? tfs[i] : 0
+                ) : tfs
+            );
 
             fonti.family = Array.isArray(tff) ? tff[i] : tff;
         }
@@ -214,7 +217,7 @@ function convertMarkerStyle(trace) {
     var optsOut = {};
     var i;
 
-    var multiSymbol = Array.isArray(optsIn.symbol);
+    var multiSymbol = Lib.isArrayOrTypedArray(optsIn.symbol);
     var multiColor = Lib.isArrayOrTypedArray(optsIn.color);
     var multiLineColor = Lib.isArrayOrTypedArray(optsIn.line.color);
     var multiOpacity = Lib.isArrayOrTypedArray(optsIn.opacity);
diff --git a/src/traces/scattergl/hover.js b/src/traces/scattergl/hover.js
index 04709c058ee..6e7c03a947c 100644
--- a/src/traces/scattergl/hover.js
+++ b/src/traces/scattergl/hover.js
@@ -109,7 +109,7 @@ function calcHover(pointData, x, y, trace) {
 
     var font = trace.textfont;
     if(font) {
-        di.ts = Array.isArray(font.size) ? font.size[id] : font.size;
+        di.ts = Lib.isArrayOrTypedArray(font.size) ? font.size[id] : font.size;
         di.tc = Array.isArray(font.color) ? font.color[id] : font.color;
         di.tf = Array.isArray(font.family) ? font.family[id] : font.family;
     }
@@ -118,7 +118,7 @@ function calcHover(pointData, x, y, trace) {
     if(marker) {
         di.ms = Lib.isArrayOrTypedArray(marker.size) ? marker.size[id] : marker.size;
         di.mo = Lib.isArrayOrTypedArray(marker.opacity) ? marker.opacity[id] : marker.opacity;
-        di.mx = Array.isArray(marker.symbol) ? marker.symbol[id] : marker.symbol;
+        di.mx = Lib.isArrayOrTypedArray(marker.symbol) ? marker.symbol[id] : marker.symbol;
         di.mc = Lib.isArrayOrTypedArray(marker.color) ? marker.color[id] : marker.color;
     }
 
@@ -143,10 +143,10 @@ function calcHover(pointData, x, y, trace) {
     if(hoverlabel) {
         di.hbg = Array.isArray(hoverlabel.bgcolor) ? hoverlabel.bgcolor[id] : hoverlabel.bgcolor;
         di.hbc = Array.isArray(hoverlabel.bordercolor) ? hoverlabel.bordercolor[id] : hoverlabel.bordercolor;
-        di.hts = Array.isArray(hoverlabel.font.size) ? hoverlabel.font.size[id] : hoverlabel.font.size;
+        di.hts = Lib.isArrayOrTypedArray(hoverlabel.font.size) ? hoverlabel.font.size[id] : hoverlabel.font.size;
         di.htc = Array.isArray(hoverlabel.font.color) ? hoverlabel.font.color[id] : hoverlabel.font.color;
         di.htf = Array.isArray(hoverlabel.font.family) ? hoverlabel.font.family[id] : hoverlabel.font.family;
-        di.hnl = Array.isArray(hoverlabel.namelength) ? hoverlabel.namelength[id] : hoverlabel.namelength;
+        di.hnl = Lib.isArrayOrTypedArray(hoverlabel.namelength) ? hoverlabel.namelength[id] : hoverlabel.namelength;
     }
     var hoverinfo = trace.hoverinfo;
     if(hoverinfo) {