fix: Check if FileList class exists before accessing it

aklinker1 · aklinker1 · commit 0abf0940978c · 2025-12-25T12:16:39.000-06:00
diff --git a/src/__tests__/app.test.ts b/src/__tests__/app.test.ts
@@ -6,7 +6,6 @@ import { expectTypeOf } from "expect-type";
 import type { AnyDef, GetAppData } from "../types";
 import { zodSchemaAdapter } from "../adapters/zod-schema-adapter";
 import { HttpStatus } from "../status";
-import "./file-list-polyfill";
 
 // Silence console.error logs
 globalThis.console.error = mock();
diff --git a/src/__tests__/client.test.ts b/src/__tests__/client.test.ts
@@ -7,7 +7,6 @@ import { expectTypeOf } from "expect-type";
 import { z } from "zod/v4";
 import { HttpStatus } from "../status";
 import { ErrorResponse, NoResponse } from "../schema";
-import "./file-list-polyfill";
 
 // Silence console.error logs
 globalThis.console.error = mock();
diff --git a/src/__tests__/file-list-polyfill.ts b/src/__tests__/file-list-polyfill.ts
diff --git a/src/__tests__/types.test.ts b/src/__tests__/types.test.ts
@@ -5,7 +5,6 @@ import { z } from "zod/v4";
 import type { StandardSchemaV1 } from "@standard-schema/spec";
 import { ErrorResponse } from "../schema";
 import type { HttpStatus } from "../status";
-import "./file-list-polyfill";
 
 describe("Types", () => {
   describe("MergeRoutes", () => {
diff --git a/src/internal/serialization.ts b/src/internal/serialization.ts
@@ -22,7 +22,7 @@ export function smartSerialize(value: unknown):
     };
   }
 
-  if (value instanceof FileList) {
+  if (typeof FileList !== "undefined" && value instanceof FileList) {
     const serialized = new FormData();
     for (let i = 0; i < value.length; i++) {
       serialized.append("files", value.item(i)!);

Original file line number	Diff line number	Diff line change
`@@ -22,7 +22,7 @@ export function smartSerialize(value: unknown):`
`22`	`22`	`};`
`23`	`23`	`}`
`24`	`24`
`25`		`- if (value instanceof FileList) {`
	`25`	`+ if (typeof FileList !== "undefined" && value instanceof FileList) {`
`26`	`26`	`const serialized = new FormData();`
`27`	`27`	`for (let i = 0; i < value.length; i++) {`
`28`	`28`	`serialized.append("files", value.item(i)!);`