diff --git a/karma.conf.js b/karma.conf.js
index a5e8d15973..b0c713856c 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -145,11 +145,7 @@ module.exports = config => {
           pattern: 'test/browser-specific/fixtures/esm.fixture.mjs',
           type: 'module'
         },
-        {pattern: 'test/browser-specific/esm.spec.mjs', type: 'module'},
-        {
-          pattern: 'test/browser-specific/uncaught-exception.spec.mjs',
-          type: 'module'
-        }
+        {pattern: 'test/browser-specific/esm.spec.mjs', type: 'module'}
       ];
       break;
     default:
diff --git a/test/browser-specific/uncaught-exception.spec.mjs b/test/browser-specific/uncaught-exception.spec.mjs
deleted file mode 100644
index 54b852f875..0000000000
--- a/test/browser-specific/uncaught-exception.spec.mjs
+++ /dev/null
@@ -1,27 +0,0 @@
-import '/base/mocha.js';
-
-var Mocha = window.Mocha;
-var Suite = Mocha.Suite;
-var Runner = Mocha.Runner;
-
-mocha.allowUncaught()
-
-it('should include the stack of uncaught exceptions', function(done) {
-  var suite = new Suite('Suite', 'root');
-  var runner = new Runner(suite);
-  runner.allowUncaught = true;
-  var err;
-  runner.fail = function(e) {
-    err = e;
-  };
-
-  setTimeout(function throwTestError() {
-    throw new Error('test error');
-  }, 1);
-
-  setTimeout(function() {
-    expect(err, 'to be an', Error);
-    expect(err.stack, 'to contain', 'at throwTestError')
-    done();
-  }, 2);
-});