[fix] make properties overwritable (#3356)

sveltejs · Jan 15, 2022 · f7abf1f · f7abf1f
1 parent f92c3e2
commit f7abf1f
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diff --git a/.changeset/cyan-schools-kiss.md b/.changeset/cyan-schools-kiss.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/kit': patch
+---
+
+Allow \_\_fetch_polyfill() to run several times
diff --git a/packages/kit/src/install-fetch.js b/packages/kit/src/install-fetch.js
@@ -5,18 +5,22 @@ export function __fetch_polyfill() {
 	Object.defineProperties(globalThis, {
 		fetch: {
 			enumerable: true,
+			configurable: true,
 			value: fetch
 		},
 		Response: {
 			enumerable: true,
+			configurable: true,
 			value: Response
 		},
 		Request: {
 			enumerable: true,
+			configurable: true,
 			value: Request
 		},
 		Headers: {
 			enumerable: true,
+			configurable: true,
 			value: Headers
 		}
 	});