diff --git a/tests/page/page-request-fulfill.spec.ts b/tests/page/page-request-fulfill.spec.ts
index de04b26b10..c97f913a2c 100644
--- a/tests/page/page-request-fulfill.spec.ts
+++ b/tests/page/page-request-fulfill.spec.ts
@@ -35,6 +35,19 @@ it('should work', async ({page, server}) => {
   expect(await page.evaluate(() => document.body.textContent)).toBe('Yo, page!');
 });
 
+it('should work with buffer as body', async ({page, server, browserName, isLinux}) => {
+  it.fail(browserName === 'webkit' && isLinux, 'Loading of application/octet-stream resource fails');
+  await page.route('**/*', route => {
+    route.fulfill({
+      status: 200,
+      body: Buffer.from('Yo, page!')
+    });
+  });
+  const response = await page.goto(server.EMPTY_PAGE);
+  expect(response.status()).toBe(200);
+  expect(await page.evaluate(() => document.body.textContent)).toBe('Yo, page!');
+});
+
 it('should work with status code 422', async ({page, server}) => {
   await page.route('**/*', route => {
     route.fulfill({
diff --git a/tests/page/page-request-intercept.spec.ts b/tests/page/page-request-intercept.spec.ts
index dde0e7a112..260fb85826 100644
--- a/tests/page/page-request-intercept.spec.ts
+++ b/tests/page/page-request-intercept.spec.ts
@@ -80,7 +80,6 @@ it('should override with defaults when intercepted response not provided', async
 
 it('should fulfill with any response', async ({page, server, browserName, browserMajorVersion, isLinux}) => {
   it.skip(browserName === 'chromium' && browserMajorVersion <= 91, 'Fails in Electron that uses old Chromium');
-  it.fail(browserName === 'webkit' && isLinux, 'Network.responseReceived comes twice');
 
   server.setRoute('/sample', (req, res) => {
     res.setHeader('foo', 'bar');
@@ -95,6 +94,7 @@ it('should fulfill with any response', async ({page, server, browserName, browse
     await route.fulfill({
       _response: sampleResponse,
       status: 201,
+      contentType: 'text/plain'
     });
   });
   const response = await page.goto(server.EMPTY_PAGE);