Detect if DOMException exists via typeof instead of trying to call it…

… and catching the exception which may get thrown fixes #724
JakeChampion · Jul 9, 2020 · e329852 · e329852
1 parent a0dcd85
commit e329852
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/fetch.js b/fetch.js
@@ -455,9 +455,8 @@ Response.redirect = function(url, status) {
 }
 
 export var DOMException = global.DOMException
-try {
-  new DOMException()
-} catch (err) {
+
+if (typeof DOMException !== 'function') {
   DOMException = function(message, name) {
     this.message = message
     this.name = name