fixed: navigator check on old runtimes

LayeredStudio · May 23, 2024 · 5ad4410 · 5ad4410
1 parent 851f876
commit 5ad4410
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/dist/index.js b/dist/index.js
@@ -24,10 +24,10 @@ const isDomain = (domain) => {
     });
 };
 function bestDnsResolverForThisRuntime() {
-    if (navigator.userAgent === 'Cloudflare-Workers') {
+    if (navigator?.userAgent === 'Cloudflare-Workers') {
         return 'cloudflare-dns';
     }
-    else if (navigator.userAgent.startsWith('Node.js/')) {
+    else if (navigator?.userAgent.startsWith('Node.js/')) {
         return 'node-dns';
     }
     else {

diff --git a/src/index.ts b/src/index.ts
@@ -42,9 +42,9 @@ const isDomain = (domain: string): boolean => {
 }
 
 function bestDnsResolverForThisRuntime(): string {
-	if (navigator.userAgent === 'Cloudflare-Workers') {
+	if (navigator?.userAgent === 'Cloudflare-Workers') {
 		return 'cloudflare-dns'
-	} else if (navigator.userAgent.startsWith('Node.js/')) {
+	} else if (navigator?.userAgent.startsWith('Node.js/')) {
 		return 'node-dns'
 	} else {
 		return 'google-dns'