Fixed another touch/cross-browser issue

annotorious · Nov 9, 2021 · 141e428 · 141e428
1 parent 233f815
commit 141e428
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/OSDAnnotationLayer.js b/src/OSDAnnotationLayer.js
@@ -97,7 +97,7 @@ export class AnnotationLayer extends EventEmitter {
     const getSVGPoint = evt => {
       const pt = this.svg.createSVGPoint();
 
-      if (evt instanceof TouchEvent) {
+      if (window.TouchEvent && (evt instanceof TouchEvent)) {
         const bbox = this.svg.getBoundingClientRect();
 
         const e = evt.touches[0];