diff --git a/CHANGELOG.md b/CHANGELOG.md
index bda3c8b40aff..85dad2f01b17 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- tbd
+- [utils] ref: Move creation of iframe in try/catch
 
 ## 5.12.4
 
diff --git a/packages/utils/src/supports.ts b/packages/utils/src/supports.ts
index b98bd40a7767..46a5c5901f5f 100644
--- a/packages/utils/src/supports.ts
+++ b/packages/utils/src/supports.ts
@@ -107,9 +107,9 @@ export function supportsNativeFetch(): boolean {
   let result = false;
   const doc = global.document;
   if (doc) {
-    const sandbox = doc.createElement('iframe');
-    sandbox.hidden = true;
     try {
+      const sandbox = doc.createElement('iframe');
+      sandbox.hidden = true;
       doc.head.appendChild(sandbox);
       if (sandbox.contentWindow && sandbox.contentWindow.fetch) {
         // tslint:disable-next-line:no-unbound-method