[Fix] handle chrome/v8 bugs

 - https://issuetracker.google.com/issues/351332634

 - https://issuetracker.google.com/u/0/issues/365705851

README.md

@@ -28,6 +28,9 @@ var shimmedResult = set1.difference(set2);
 assert.deepEqual(shimmedResult, new Set([1]));
 ```
 
+## Compatibility
+node v22 and equivalent versions of Chrome have Set difference, but has a bug with set-like arguments with non-SMI integer sizes.
+
 ## Tests
 Simply clone the repo, `npm install`, and run `npm test`
 

polyfill.js

@@ -5,5 +5,24 @@ var Set = require('es-set/polyfill')();
 var implementation = require('./implementation');
 
 module.exports = function getPolyfill() {
-	return typeof Set.prototype.difference === 'function' ? Set.prototype.difference : implementation;
+	if (typeof Set.prototype.difference === 'function') {
+		var called = false;
+		var setLike = {
+			size: Infinity,
+			has: function () {},
+			keys: function () {
+				called = true;
+				return [].values();
+			}
+		};
+
+		new Set([1]).difference(setLike);
+		setLike.size = 2147483648; // 2 ** 31
+		new Set([1]).difference(setLike);
+
+		if (!called) {
+			return Set.prototype.difference;
+		}
+	}
+	return implementation;
 };

test/tests.js

@@ -493,5 +493,28 @@ module.exports = function (difference, t) {
 		st.end();
 	});
 
+	t.test('works with a set-like of certain sizes', function (st) {
+		var setLike = {
+			size: Math.pow(2, 31),
+			has: function () {},
+			keys: function () {
+				throw new Error('Unexpected call to |keys| method');
+			}
+		};
+
+		st.doesNotThrow(
+			function () { difference(new $Set([1]), setLike); },
+			'2**31: `keys` function is not invoked'
+		);
+
+		setLike.size = Infinity;
+		st.doesNotThrow(
+			function () { difference(new $Set([1]), setLike); },
+			'∞: `keys` function is not invoked'
+		);
+
+		st.end();
+	});
+
 	return t.comment('tests completed');
 };