diff --git a/engine/src/flutter/lib/web_ui/lib/src/engine/browser_detection.dart b/engine/src/flutter/lib/web_ui/lib/src/engine/browser_detection.dart
index 5d0f55d4a2d..054b16e6be8 100644
--- a/engine/src/flutter/lib/web_ui/lib/src/engine/browser_detection.dart
+++ b/engine/src/flutter/lib/web_ui/lib/src/engine/browser_detection.dart
@@ -19,6 +19,9 @@ enum BrowserEngine {
   /// The engine that powers Edge.
   edge,
 
+  /// The engine that powers Internet Explorer 11.
+  ie11,
+
   /// We were unable to detect the current browser engine.
   unknown,
 }
@@ -33,14 +36,16 @@ BrowserEngine get browserEngine => _browserEngine ??= _detectBrowserEngine();
 
 BrowserEngine _detectBrowserEngine() {
   final String vendor = html.window.navigator.vendor;
-  final String agent = html.window.navigator.userAgent;
+  final String agent = html.window.navigator.userAgent.toLowerCase();
   if (vendor == 'Google Inc.') {
     return BrowserEngine.blink;
   } else if (vendor == 'Apple Computer, Inc.') {
     return BrowserEngine.webkit;
-  } else if (agent.contains('Edge/')) {
+  } else if (agent.contains('edge/')) {
     return BrowserEngine.edge;
-  } else if (vendor == '') {
+  } else if (agent.contains('trident/7.0')) {
+    return BrowserEngine.ie11;
+  } else if (vendor == '' && agent.contains('firefox')) {
     // An empty string means firefox:
     // https://developer.mozilla.org/en-US/docs/Web/API/Navigator/vendor
     return BrowserEngine.firefox;
@@ -48,7 +53,6 @@ BrowserEngine _detectBrowserEngine() {
 
   // Assume blink otherwise, but issue a warning.
   print('WARNING: failed to detect current browser engine.');
-
   return BrowserEngine.unknown;
 }