From d183d364a03045dca4d8d67fcb983e66958b75d1 Mon Sep 17 00:00:00 2001
From: Yury Semikhatsky <yurys@chromium.org>
Date: Fri, 22 Oct 2021 16:52:49 -0700
Subject: [PATCH] fix(fetch): remove content-length from redirected post
 requests (#9728)

---
 packages/playwright-core/src/server/fetch.ts |  1 +
 tests/global-fetch.spec.ts                   | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/packages/playwright-core/src/server/fetch.ts b/packages/playwright-core/src/server/fetch.ts
index b4c93ebc12..84435874e3 100644
--- a/packages/playwright-core/src/server/fetch.ts
+++ b/packages/playwright-core/src/server/fetch.ts
@@ -226,6 +226,7 @@ export abstract class FetchRequest extends SdkObject {
             postData = undefined;
             delete headers[`content-encoding`];
             delete headers[`content-language`];
+            delete headers[`content-length`];
             delete headers[`content-location`];
             delete headers[`content-type`];
           }
diff --git a/tests/global-fetch.spec.ts b/tests/global-fetch.spec.ts
index a2b6999026..460ebf439f 100644
--- a/tests/global-fetch.spec.ts
+++ b/tests/global-fetch.spec.ts
@@ -210,3 +210,21 @@ it('should abort redirected requests when context is disposed', async ({ playwri
   expect(result.message).toContain('Request context disposed');
   await connectionClosed;
 });
+
+it('should remove content-length from reidrected post requests', async ({ playwright, server }) => {
+  server.setRedirect('/redirect', '/empty.html');
+  const request = await playwright.request.newContext();
+  const [result, req1, req2] = await Promise.all([
+    request.post(server.PREFIX + '/redirect', {
+      data: {
+        'foo': 'bar'
+      }
+    }),
+    server.waitForRequest('/redirect'),
+    server.waitForRequest('/empty.html')
+  ]);
+  expect(result.status()).toBe(200);
+  expect(req1.headers['content-length']).toBe('13');
+  expect(req2.headers['content-length']).toBe(undefined);
+  await request.dispose();
+});