duckduckgo · laghee · Nov 27, 2025 · Oct 14, 2025 · Oct 14, 2025 · Oct 21, 2025
@@ -0,0 +1,11 @@
+{
+    "readme": "This config tests that uaChBrands can override navigator.userAgentData brands",
+    "version": 1,
+    "unprotectedTemporary": [],
+    "features": {
+        "uaChBrands": {
+            "state": "enabled",
+            "exceptions": []
+        }
+    }
+}
@@ -0,0 +1,25 @@
+{
+  "readme": "This config tests domain-specific brand overrides using conditionalChanges",
+  "version": 1,
+  "unprotectedTemporary": [],
+  "features": {
+    "uaChBrands": {
+      "state": "enabled",
+      "exceptions": [],
+      "settings": {
+        "conditionalChanges": [
+          {
+            "domain": "localhost",
+            "patchSettings": [
+              {
+                "op": "add",
+                "path": "/brandName",
+                "value": "Netscape Navigator"
+              }
+            ]
+          }
+        ]
+      }
+    }
+  }
+}
@@ -0,0 +1,14 @@
+{
+  "readme": "Test config with overrideEdge disabled but filterWebView2 enabled (default)",
+  "version": 1,
+  "unprotectedTemporary": [],
+  "features": {
+    "uaChBrands": {
+      "state": "enabled",
+      "exceptions": [],
+      "settings": {
+        "overrideEdge": "disabled"
+      }
+    }
+  }
+}
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width">
+    <title>UA CH Brands</title>
+    <link rel="stylesheet" href="../shared/style.css">
+</head>
+<body>
+    <p><a href="../index.html">[Home]</a></p>
+
+    <p>UA CH Brands</p>
+    <ul>
+        <li><a href="./pages/brand-override.html">Brand Override</a> - <a href="./config/brand-override.json">Config</a></li>
+    </ul>
+</body>
+</html>
@@ -0,0 +1,82 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width">
+  <title>UA CH Brands - Brand Override</title>
+  <link rel="stylesheet" href="../../shared/style.css">
+</head>
+<body>
+    <script src="../../shared/utils.js"></script>
+    <p><a href="../index.html">[UA CH Brands]</a></p>
+
+    <p>This page verifies that navigator.userAgentData overwrites the UA CH brands to match the Sec-CH-UA header when the uaChBrands feature is enabled.</p>
+
+    <script>
+        test('Brand override', async () => {
+            const results = [];
+
+            if (navigator.userAgentData && navigator.userAgentData.brands) {
+                const brands = navigator.userAgentData.brands;
+                const brandNames = new Set(brands.map(b => b.brand));
+
+                results.push({
+                    name: 'navigator.userAgentData.brands contains DuckDuckGo',
+                    result: brandNames.has('DuckDuckGo'),
+                    expected: true
+                });
+
+                if (navigator.userAgentData.getHighEntropyValues) {
+                    try {
+                        const highEntropyValues = await navigator.userAgentData.getHighEntropyValues(['brands']);
+                        if (highEntropyValues.brands) {
+                            const heBrandNames = new Set(highEntropyValues.brands.map(b => b.brand));
+
+                            results.push({
+                                name: 'navigator.userAgentData.getHighEntropyValues brands contains DuckDuckGo',
+                                result: heBrandNames.has('DuckDuckGo'),
+                                expected: true
+                            });
+                        }
+                    } catch (error) {
+                        results.push({
+                            name: 'getHighEntropyValues brands works',
+                            result: false,
+                            expected: true
+                        });
+                    }
+
+                    try {
+                        const fullVersionData = await navigator.userAgentData.getHighEntropyValues(['fullVersionList']);
+                        if (fullVersionData.fullVersionList) {
+                            const fvlBrandNames = new Set(fullVersionData.fullVersionList.map(b => b.brand));
+
+                            results.push({
+                                name: 'navigator.userAgentData.getHighEntropyValues fullVersionList contains DuckDuckGo',
+                                result: fvlBrandNames.has('DuckDuckGo'),
+                                expected: true
+                            });
+                        }
+                    } catch (error) {
+                        results.push({
+                            name: 'getHighEntropyValues fullVersionList works',
+                            result: false,
+                            expected: true
+                        });
+                    }
+                }
+            } else {
+                results.push({
+                    name: 'navigator.userAgentData.brands available',
+                    result: false,
+                    expected: true
+                });
+            }
+
+            return results;
+        });
+
+        renderResults();
+    </script>
+</body>
+</html>
@@ -0,0 +1,96 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <title>UA-CH-Brands: Domain Brand Override Test</title>
+</head>
+<body>
+    <h1>UA-CH-Brands Domain Brand Override Test</h1>
+    <div id="results"></div>
+
+    <script type="module">
+        const results = [];
+
+        if (navigator.userAgentData?.brands) {
+            const brands = navigator.userAgentData.brands;
+            const netscapeCount = brands.filter(b => b.brand === 'Netscape Navigator').length;
+            const ddgCount = brands.filter(b => b.brand === 'DuckDuckGo').length;
+
+            results.push({
+                test: 'brands-contains-netscape',
+                result: netscapeCount > 0 ? 'PASS' : 'FAIL',
+                details: `Found ${netscapeCount} Netscape Navigator brand(s)`
+            });
+
+            results.push({
+                test: 'brands-no-duckduckgo',
+                result: ddgCount === 0 ? 'PASS' : 'FAIL',
+                details: `Found ${ddgCount} DuckDuckGo brand(s) (expected 0)`
+            });
+        }
+
+        if (navigator.userAgentData?.getHighEntropyValues) {
+            try {
+                const highEntropy = await navigator.userAgentData.getHighEntropyValues(['brands']);
+                if (highEntropy.brands) {
+                    const brands = highEntropy.brands;
+                    const netscapeCount = brands.filter(b => b.brand === 'Netscape Navigator').length;
+                    const ddgCount = brands.filter(b => b.brand === 'DuckDuckGo').length;
+
+                    results.push({
+                        test: 'getHighEntropyValues-brands-contains-netscape',
+                        result: netscapeCount > 0 ? 'PASS' : 'FAIL',
+                        details: `Found ${netscapeCount} Netscape Navigator brand(s) in getHighEntropyValues brands`
+                    });
+
+                    results.push({
+                        test: 'getHighEntropyValues-brands-no-duckduckgo',
+                        result: ddgCount === 0 ? 'PASS' : 'FAIL',
+                        details: `Found ${ddgCount} DuckDuckGo brand(s) in getHighEntropyValues brands (expected 0)`
+                    });
+                }
+            } catch (e) {
+                results.push({
+                    test: 'getHighEntropyValues-brands-error',
+                    result: 'ERROR',
+                    details: e.message
+                });
+            }
+        }
+
+        if (navigator.userAgentData?.getHighEntropyValues) {
+            try {
+                const highEntropy = await navigator.userAgentData.getHighEntropyValues(['fullVersionList']);
+                if (highEntropy.fullVersionList) {
+                    const fvl = highEntropy.fullVersionList;
+                    const netscapeCount = fvl.filter(b => b.brand === 'Netscape Navigator').length;
+                    const ddgCount = fvl.filter(b => b.brand === 'DuckDuckGo').length;
+
+                    results.push({
+                        test: 'fullVersionList-contains-netscape',
+                        result: netscapeCount > 0 ? 'PASS' : 'FAIL',
+                        details: `Found ${netscapeCount} Netscape Navigator brand(s) in fullVersionList`
+                    });
+
+                    results.push({
+                        test: 'fullVersionList-no-duckduckgo',
+                        result: ddgCount === 0 ? 'PASS' : 'FAIL',
+                        details: `Found ${ddgCount} DuckDuckGo brand(s) in fullVersionList (expected 0)`
+                    });
+                }
+            } catch (e) {
+                results.push({
+                    test: 'fullVersionList-error',
+                    result: 'ERROR',
+                    details: e.message
+                });
+            }
+        }
+
+        window.results = results;
+
+        const resultsDiv = document.getElementById('results');
+        resultsDiv.innerHTML = '<pre>' + JSON.stringify(results, null, 2) + '</pre>';
+    </script>
+</body>
+</html>
@@ -0,0 +1,75 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <title>UA-CH-Brands: Override Edge Disabled Test</title>
+</head>
+<body>
+    <h1>UA-CH-Brands Override Edge Disabled Test</h1>
+    <div id="results"></div>
+
+    <script type="module">
+        const results = [];
+
+        if (navigator.userAgentData?.brands) {
+            const brands = navigator.userAgentData.brands;
+            const ddgCount = brands.filter(b => b.brand === 'DuckDuckGo').length;
+
+            results.push({
+                test: 'brands-no-duckduckgo',
+                result: ddgCount === 0 ? 'PASS' : 'FAIL',
+                details: `Found ${ddgCount} DuckDuckGo brand(s) (expected 0 - overrideEdge disabled)`
+            });
+        }
+
+        if (navigator.userAgentData?.getHighEntropyValues) {
+            try {
+                const highEntropy = await navigator.userAgentData.getHighEntropyValues(['brands']);
+                if (highEntropy.brands) {
+                    const brands = highEntropy.brands;
+                    const ddgCount = brands.filter(b => b.brand === 'DuckDuckGo').length;
+
+                    results.push({
+                        test: 'getHighEntropyValues-brands-no-duckduckgo',
+                        result: ddgCount === 0 ? 'PASS' : 'FAIL',
+                        details: `Found ${ddgCount} DuckDuckGo brand(s) in getHighEntropyValues brands (expected 0)`
+                    });
+                }
+            } catch (e) {
+                results.push({
+                    test: 'getHighEntropyValues-brands-error',
+                    result: 'ERROR',
+                    details: e.message
+                });
+            }
+        }
+
+        if (navigator.userAgentData?.getHighEntropyValues) {
+            try {
+                const highEntropy = await navigator.userAgentData.getHighEntropyValues(['fullVersionList']);
+                if (highEntropy.fullVersionList) {
+                    const fvl = highEntropy.fullVersionList;
+                    const ddgCount = fvl.filter(b => b.brand === 'DuckDuckGo').length;
+
+                    results.push({
+                        test: 'fullVersionList-no-duckduckgo',
+                        result: ddgCount === 0 ? 'PASS' : 'FAIL',
+                        details: `Found ${ddgCount} DuckDuckGo brand(s) in fullVersionList (expected 0)`
+                    });
+                }
+            } catch (e) {
+                results.push({
+                    test: 'fullVersionList-error',
+                    result: 'ERROR',
+                    details: e.message
+                });
+            }
+        }
+
+        window.results = results;
+
+        const resultsDiv = document.getElementById('results');
+        resultsDiv.innerHTML = '<pre>' + JSON.stringify(results, null, 2) + '</pre>';
+    </script>
+</body>
+</html>