feat: add ruleset configuration for modifying response headers in rules.json

extension/manifest.json

@@ -15,8 +15,19 @@
         "default_popup": "popup.html"
     },
     "permissions": [
-        "storage"
+        "storage",
+        "declarativeNetRequest"
     ],
+    "host_permissions": [
+        "<all_urls>"
+    ],
+    "declarative_net_request": {
+        "rule_resources": [{
+            "id": "ruleset_1",
+            "enabled": true,
+            "path": "rules.json"
+        }]
+    },
     "web_accessible_resources": [
         {
             "resources": ["init.js", "globals.js", "helpers.js", "hooks.js"],

extension/rules.json

@@ -0,0 +1,35 @@
+[
+    {
+        "id": 1,
+        "priority": 1,
+        "action": {
+            "type": "modifyHeaders",
+            "responseHeaders": [
+                {
+                    "header": "cross-origin-opener-policy",
+                    "operation": "remove"
+                }
+            ]
+        },
+        "condition": {
+            "urlFilter": "*",
+            "resourceTypes": [
+                "main_frame",
+                "sub_frame",
+                "stylesheet",
+                "script",
+                "image",
+                "font",
+                "object",
+                "xmlhttprequest",
+                "ping",
+                "csp_report",
+                "media",
+                "websocket",
+                "webtransport",
+                "webbundle",
+                "other"
+            ]
+        }
+    }
+]