fix: fatal error on iOS Chrome

apps/web/src/pages/_app.tsx

@@ -30,7 +30,6 @@ type AppPropsWithLayout = AppProps & {
 const EmptyLayout = (page: ReactElement) => page;
 
 const clientSideEmotionCache = createEmotionCache();
-const helmetContext = {};
 
 const App = function App({
   Component,

packages/env/src/index.ts

@@ -13,6 +13,7 @@ type BrowserBase = {
   // browser special properties
   isLinux: boolean;
   isMacOs: boolean;
+  isIOS: boolean;
   isSafari: boolean;
   isWindows: boolean;
   isFireFox: boolean;
@@ -83,8 +84,10 @@ export function getEnvironment() {
       isFireFox: uaHelper.isFireFox,
       isMobile: uaHelper.isMobile,
       isChrome: uaHelper.isChrome,
+      isIOS: uaHelper.isIOS,
     } as Browser;
-    if (environment.isChrome === true) {
+    // Chrome on iOS is still Safari
+    if (environment.isChrome && !environment.isIOS) {
       assertEquals(environment.isSafari, false);
       assertEquals(environment.isFireFox, false);
       environment = {

packages/env/src/ua-helper.ts

@@ -57,6 +57,7 @@ export function getUaHelper() {
       public isFireFox = false;
       public isMobile = false;
       public isChrome = false;
+      public isIOS = false;
 
       getChromeVersion = (): number => {
         const raw = navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./);
@@ -81,6 +82,7 @@ export function getUaHelper() {
         this.isFireFox = this.checkUseragent('firefox');
         this.isMobile = this.checkUseragent('mobile');
         this.isChrome = this.checkUseragent('chrome');
+        this.isIOS = this.checkUseragent('ios');
       }
     }
     uaHelper = new UaHelper();