diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index 40207e6a..661968a1 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -270,6 +270,16 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
     if (value instanceof Error) {
       return true;
     }
+    if (
+      typeof window !== 'undefined' &&
+      typeof window.trustedTypes !== 'undefined'
+    ) {
+      return (
+        value &&
+        typeof value.stack === 'string' &&
+        typeof value.message === 'string'
+      );
+    }
     if (value && value.constructor && value.constructor.constructor) {
       var valueGlobal = value.constructor.constructor('return this');
       if (j$.isFunction_(valueGlobal)) {
diff --git a/src/core/base.js b/src/core/base.js
index c40c6559..1d31d89d 100644
--- a/src/core/base.js
+++ b/src/core/base.js
@@ -102,6 +102,16 @@ getJasmineRequireObj().base = function(j$, jasmineGlobal) {
     if (value instanceof Error) {
       return true;
     }
+    if (
+      typeof window !== 'undefined' &&
+      typeof window.trustedTypes !== 'undefined'
+    ) {
+      return (
+        value &&
+        typeof value.stack === 'string' &&
+        typeof value.message === 'string'
+      );
+    }
     if (value && value.constructor && value.constructor.constructor) {
       var valueGlobal = value.constructor.constructor('return this');
       if (j$.isFunction_(valueGlobal)) {