Improve performance on Playwright Windows WebKit

spec/helpers/nodeDefineJasmineUnderTest.js

@@ -16,7 +16,9 @@
       return path.join(__dirname, '../../', 'src/', file);
     });
 
-    const files = src_files.flatMap(g => glob.sync(g));
+    const files = src_files.flatMap(g =>
+      glob.sync(g, { windowsPathsNoEscape: true })
+    );
     files.forEach(function(resolvedFile) {
       require(resolvedFile);
     });

src/core/ClearStack.js

@@ -70,7 +70,9 @@ getJasmineRequireObj().clearStack = function(j$) {
 
     const SAFARI =
       global.navigator &&
-      /^((?!chrome|android).)*safari/i.test(global.navigator.userAgent);
+      /(^((?!chrome|android).)*safari)|(^((?!chrome|android|firefox).)+$)/i.test(
+        global.navigator.userAgent
+      );
 
     if (NODE_JS) {
       // Unlike browsers, Node doesn't require us to do a periodic setTimeout