chore: upgrade Chromium from v126 to v143 for asset discovery

.github/.cache-key

@@ -6,5 +6,5 @@
               ;   ;
               /   \
 _____________/_ __ \_____________
-Times we have broken CI: 3
+Times we have broken CI: 4
 Times Windows has broken CI: 99+

packages/core/src/browser.js

@@ -11,6 +11,16 @@ import install from './install.js';
 import Session from './session.js';
 import Page from './page.js';
 
+// Chrome features Percy disables for v143 new-headless asset discovery.
+const DISABLED_FEATURES = [
+  'Translate', // suppress translate prompt overlay
+  'OptimizationGuideModelDownloading', // suppress background model fetches
+  'IsolateOrigins', // [headless-only] keep cross-origin sub-resources on the page session for CDP capture
+  'site-per-process', // companion to IsolateOrigins
+  'HttpsFirstBalancedModeAutoEnable', // allow HTTP customer URLs (CI / local dev / staging)
+  'LocalNetworkAccessChecks' // allow loopback/RFC1918 sub-resources (Chrome 143 LNA gating)
+];
+
 export class Browser extends EventEmitter {
   log = logger('core:browser');
   sessions = new Map();
@@ -21,8 +31,7 @@ export class Browser extends EventEmitter {
   #lastid = 0;
 
   args = [
-    // disable the translate popup and optimization downloads
-    '--disable-features=Translate,OptimizationGuideModelDownloading',
+    `--disable-features=${DISABLED_FEATURES.join(',')}`,
     // disable several subsystems which run network requests in the background
     '--disable-background-networking',
     // disable task throttling of timer tasks from background pages
@@ -300,9 +309,11 @@ export class Browser extends EventEmitter {
         if (match) cleanup(() => resolve(match[1]));
       };
 
-      let handleExitClose = () => handleError();
+      let handleExitClose = () => handleError(
+        new Error('Browser exited before devtools address')
+      );
       let handleError = error => cleanup(() => reject(new Error(
-        `Failed to launch browser. ${error?.message ?? ''}\n${stderr}'\n\n`
+        `Failed to launch browser. ${error.message}\n${stderr}'\n\n`
       )));
 
       let cleanup = callback => {

packages/core/src/install.js

@@ -175,13 +175,14 @@ export function chromium({
   });
 }
 
-// default chromium revisions corresponds to v126.0.6478.184
+// Chrome 143.0.7499.169 (base position 1536371) — closest per-platform
+// revision from https://commondatastorage.googleapis.com/chromium-browser-snapshots/index.html
 chromium.revisions = {
-  linux: '1300309',
-  win64: '1300297',
-  win32: '1300295',
-  darwin: '1300293',
-  darwinArm: '1300314'
+  linux: '1536366',
+  win64: '1536376',
+  win32: '1536377',
+  darwin: '1536380',
+  darwinArm: '1536376'
 };
 
 // export the namespace by default