diff --git a/test/capabilities.spec.js b/test/capabilities.spec.js
index 1b6fae9d86..6ae15ce2ac 100644
--- a/test/capabilities.spec.js
+++ b/test/capabilities.spec.js
@@ -21,4 +21,16 @@ describe('Capabilities', function() {
     await page.goto(server.PREFIX + '/wasm/table2.html');
     expect(await page.evaluate(() => loadTable())).toBe('42, 83');
   });
+
+  it('WebSocket should work', async({page, server}) => {
+    const value = await page.evaluate((port) => {
+      let cb;
+      const result = new Promise(f => cb = f);
+      const ws = new WebSocket('ws://localhost:' + port + '/ws');
+      ws.addEventListener('message', data => { ws.close(); cb(data.data); });
+      ws.addEventListener('error', error => cb('Error'));
+      return result;
+    }, server.PORT);
+    expect(value).toBe('incoming');
+  });
 });
diff --git a/test/ignorehttpserrors.spec.js b/test/ignorehttpserrors.spec.js
index 04438bc5b7..a1eea7fd6f 100644
--- a/test/ignorehttpserrors.spec.js
+++ b/test/ignorehttpserrors.spec.js
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-const {FFOX, CHROMIUM, WEBKIT} = require('./utils').testOptions(browserType);
+const {FFOX, CHROMIUM, WEBKIT, MAC} = require('./utils').testOptions(browserType);
 
 describe('ignoreHTTPSErrors', function() {
   it('should work', async({browser, httpsServer}) => {
@@ -60,4 +60,32 @@ describe('ignoreHTTPSErrors', function() {
     expect(await page.frames()[1].evaluate('2 + 3')).toBe(5);
     await context.close();
   });
+  it.fail(WEBKIT && MAC)('should work with WebSocket', async({browser, httpsServer}) => {
+    const context = await browser.newContext({ ignoreHTTPSErrors: true });
+    const page = await context.newPage();
+    const value = await page.evaluate(endpoint => {
+      let cb;
+      const result = new Promise(f => cb = f);
+      const ws = new WebSocket(endpoint);
+      ws.addEventListener('message', data => { ws.close(); cb(data.data); });
+      ws.addEventListener('error', error => cb('Error'));
+      return result;
+    }, httpsServer.PREFIX.replace(/https/, 'wss') + '/ws');
+    expect(value).toBe('incoming');
+    await context.close();
+  });
+  it('should fail with WebSocket if not ignored', async({browser, httpsServer}) => {
+    const context = await browser.newContext();
+    const page = await context.newPage();
+    const value = await page.evaluate(endpoint => {
+      let cb;
+      const result = new Promise(f => cb = f);
+      const ws = new WebSocket(endpoint);
+      ws.addEventListener('message', data => { ws.close(); cb(data.data); });
+      ws.addEventListener('error', error => cb('Error'));
+      return result;
+    }, httpsServer.PREFIX.replace(/https/, 'wss') + '/ws');
+    expect(value).toBe('Error');
+    await context.close();
+  });
 });