fix: declare web types as global (#12497)

Co-authored-by: Feng Yu <F3n67u@outlook.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/ext/fetch/lib.deno_fetch.d.ts b/ext/fetch/lib.deno_fetch.d.ts
index 7fe7d9453..e2f693d28 100644
--- a/ext/fetch/lib.deno_fetch.d.ts
+++ b/ext/fetch/lib.deno_fetch.d.ts
@@ -22,11 +22,7 @@ type FormDataEntryValue = File | string;
  * form fields and their values, which can then be easily sent using the
  * XMLHttpRequest.send() method. It uses the same format a form would use if the
  * encoding type were set to "multipart/form-data". */
-declare class FormData implements DomIterable<string, FormDataEntryValue> {
-  // TODO(ry) FormData constructor is non-standard.
-  // new(form?: HTMLFormElement): FormData;
-  constructor();
-
+interface FormData {
   append(name: string, value: string | Blob, fileName?: string): void;
   delete(name: string): void;
   get(name: string): FormDataEntryValue | null;
@@ -43,6 +39,11 @@ declare class FormData implements DomIterable<string, FormDataEntryValue> {
   ): void;
 }
 
+declare var FormData: {
+  prototype: FormData;
+  new (): FormData;
+};
+
 interface Body {
   /** A simple getter used to expose a `ReadableStream` of the body contents. */
   readonly body: ReadableStream<Uint8Array> | null;