Manifest v3

background.js

@@ -1,47 +0,0 @@
-/* eslint-disable no-undef */
-// https://stackoverflow.com/a/45985333
-function getBrowser() {
-	if (typeof chrome !== "undefined") {
-		if (typeof browser !== "undefined") {
-			return "Firefox";
-		} else {
-			return "Chrome";
-		}
-	} else {
-		return "Edge";
-	}
-}
-
-chrome.webRequest.onBeforeRequest.addListener(
-	function (details) {
-		if (getBrowser() == "Chrome") {
-			return { redirectUrl: chrome.runtime.getURL("cadmium-playercore-shim.js") };
-		}
-		
-		/* Work around funky CORS behaviour on Firefox */
-		else if (getBrowser() == "Firefox") {
-			let filter = browser.webRequest.filterResponseData(details.requestId);
-			let encoder = new TextEncoder();
-			filter.onstop = () => {
-				fetch(browser.runtime.getURL("cadmium-playercore-shim.js")).
-					then(response => response.text()).
-					then(text => {
-						filter.write(encoder.encode(text));
-						filter.close();
-					});
-			};
-			return {};
-		}
-		
-		else {
-			console.error("Unsupported web browser.");
-			return {};
-		}
-	}, {
-		urls: [
-			"*://assets.nflxext.com/*/ffe/player/html/*",
-			"*://www.assets.nflxext.com/*/ffe/player/html/*"
-		],
-		types: ["script"]
-	}, ["blocking"]
-);

manifest.json

@@ -1,10 +1,10 @@
 {
-	"manifest_version": 2,
+	"manifest_version": 3,
 	"name": "Netflix International",
 	"description": "Displays all available Netflix audio and subtitle tracks.",
 	"version": "2.0.17",
 	"author": "shirt",
-	"browser_action": {
+	"action": {
 	  "default_icon": "img/icon128.png",
 	  "default_popup": "pages/options.html"
 	},
@@ -29,22 +29,33 @@
 	  "js": ["content_script.js"],
 	  "run_at": "document_start"
 	}],
-	"background": {
-	  "scripts": ["background.js"]
-	},
 	"options_ui": {
 	  "page": "pages/options.html",
 	  "open_in_tab": true
 	},
-	"web_accessible_resources": [
+	"web_accessible_resources": [{
+		"resources": [
 			"cadmium-playercore-shim.js",
 			"netflix_max_bitrate.js",
 			"netflix.css"
 		],
+		"matches": [
+			"*://netflix.com/*",
+			"*://www.netflix.com/*"
+		]
+	}],
+	"declarative_net_request" : {
+		"rule_resources" : [{
+			"id": "1",
+			"enabled": true,
+			"path": "rules.json"
+		}]
+	},
 	"permissions": [
 	  "storage",
-	  "webRequest",
-	  "webRequestBlocking",
+	  "declarativeNetRequest"
+	],
+	"host_permissions": [
 	  "*://assets.nflxext.com/*/ffe/player/html/*",
 	  "*://www.assets.nflxext.com/*/ffe/player/html/*",
 	  "*://netflix.com/*",

rules.json

@@ -0,0 +1,20 @@
+[
+	{
+		"id": 1,
+		"priority": 1,
+		"action": { "type": "redirect", "redirect": { "extensionPath": "/cadmium-playercore-shim.js" } },
+		"condition": {
+            "urlFilter": "*://www.assets.nflxext.com/*/ffe/player/html/*",
+            "resourceTypes": ["script"]
+        }
+	},
+	{
+		"id": 2,
+		"priority": 1,
+		"action": { "type": "redirect", "redirect": { "extensionPath": "/cadmium-playercore-shim.js" } },
+		"condition": { 
+            "urlFilter": "*://assets.nflxext.com/*/ffe/player/html/*",
+            "resourceTypes": ["script"]
+        }
+	}
+]