fix: throw 404 only when writableEnded is not set

pi0 · pi0 · commit 1c42a07e3ecc · 2020-11-20T01:13:38.000+01:00
diff --git a/src/app.ts b/src/app.ts
@@ -35,7 +35,9 @@ export function createApp (options: AppOptions = {}): App {
       }
     }
 
-    throw createError(404, 'Not Found')
+    if (!res.writableEnded) {
+      throw createError(404, 'Not Found')
+    }
   }
 
   const handle: Handle = function (req: IncomingMessage, res: ServerResponse) {

Original file line number	Diff line number	Diff line change
`@@ -35,7 +35,9 @@ export function createApp (options: AppOptions = {}): App {`
`35`	`35`	`}`
`36`	`36`	`}`
`37`	`37`
`38`		`- throw createError(404, 'Not Found')`
	`38`	`+ if (!res.writableEnded) {`
	`39`	`+ throw createError(404, 'Not Found')`
	`40`	`+ }`
`39`	`41`	`}`
`40`	`42`
`41`	`43`	`const handle: Handle = function (req: IncomingMessage, res: ServerResponse) {`