fix(overlay): handle missing customElements (#4856)

vitejs · Sep 6, 2021 · e5b472d · e5b472d
1 parent c588b8f
commit e5b472d
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/packages/vite/src/client/overlay.ts b/packages/vite/src/client/overlay.ts
@@ -182,4 +182,6 @@ export class ErrorOverlay extends HTMLElement {
 }
 
 export const overlayId = 'vite-error-overlay'
-!customElements.get(overlayId) && customElements.define(overlayId, ErrorOverlay)
+if (customElements && !customElements.get(overlayId)) {
+  customElements.define(overlayId, ErrorOverlay)
+}