MV3: Request content-script config on first tick

integration-test/data/staticcdn/trackerblocking/config/v2/extension-chromemv3-config.json

@@ -1146,7 +1146,14 @@
         "navigatorInterface": {
             "exceptions": [],
             "state": "enabled",
-            "hash": "e25bc15aae118274e8d4481baf2033dd"
+            "hash": "e25bc15aae118274e8d4481baf2033dd",
+            "settings": {
+                "privilegedDomains": [
+                    {
+                        "domain": "duckduckgo.com"
+                    }
+                ]
+            }
         },
         "nonTracking3pCookies": {
             "settings": {

integration-test/navigator-interface.spec.js

@@ -3,9 +3,15 @@ import backgroundWait from './helpers/backgroundWait'
 import { TEST_SERVER_ORIGIN } from './helpers/testPages'
 
 test.describe('navigatorInterface', () => {
-    test('injects navigator.duckduckgo interface into pages', async ({ backgroundPage, page, context }) => {
+    test('injects navigator.duckduckgo interface into pages', async ({ backgroundPage, page, context, manifestVersion }) => {
         await backgroundWait.forExtensionLoaded(context)
         await backgroundWait.forAllConfiguration(backgroundPage)
+        if (manifestVersion === 3) {
+            // wait for content-script registration to complete
+            await backgroundPage.evaluate(() => {
+                return globalThis.components.scriptInjection.ready
+            })
+        }
         await page.goto('https://privacy-test-pages.site/features/navigator-interface.html')
         expect(await page.locator('#interface').innerText()).toBe('interface: true')
         expect(await page.locator('#isDuckDuckGo').innerText()).toBe('isDuckDuckGo: true')

shared/js/content-scripts/content-scope-messaging.js

@@ -19,7 +19,39 @@ function getSecret () {
 }
 
 async function init () {
-    const secret = await getSecret()
+    const secretPromise = getSecret()
+
+    // send off a message to the background to get config for this frame
+    chrome.runtime.sendMessage({
+        messageType: 'registeredContentScript',
+        options: {
+            documentUrl: window.location.href
+        }
+    }, async (argumentsObject) => {
+        // Setup debugging messages if necessary.
+        if (argumentsObject.debug) {
+            window.addEventListener('message', message => {
+                if (message.data.action && message.data.message) {
+                    chrome.runtime.sendMessage({
+                        messageType: 'debuggerMessage',
+                        options: message.data
+                    })
+                }
+            })
+        }
+
+        // if we didn't get the secret yet, wait for it
+        const secret = await secretPromise
+        // Init the content-scope-scripts with the argumentsObject.
+        window.dispatchEvent(new CustomEvent(secret, {
+            detail: {
+                type: 'register',
+                argumentsObject
+            }
+        }))
+    })
+
+    const secret = await secretPromise
 
     // Content-scope-script messaging proxy, to allow the Click to Load content
     // script to send messages to the extension's background and receive a
@@ -58,33 +90,6 @@ async function init () {
             detail: message
         }))
     })
-
-    chrome.runtime.sendMessage({
-        messageType: 'registeredContentScript',
-        options: {
-            documentUrl: window.location.href
-        }
-    }, argumentsObject => {
-        // Setup debugging messages if necessary.
-        if (argumentsObject.debug) {
-            window.addEventListener('message', message => {
-                if (message.data.action && message.data.message) {
-                    chrome.runtime.sendMessage({
-                        messageType: 'debuggerMessage',
-                        options: message.data
-                    })
-                }
-            })
-        }
-
-        // Init the content-scope-scripts with the argumentsObject.
-        window.dispatchEvent(new CustomEvent(secret, {
-            detail: {
-                type: 'register',
-                argumentsObject
-            }
-        }))
-    })
 }
 
 init()