fix: do not prerequest default favicon

client/src/App.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useRef, useState } from 'react'
+import { useEffect, useMemo, useRef, useState } from 'react'
 import { Helmet } from 'react-helmet'
 import { getCookie } from 'typescript-cookie'
 import { DefaultParams, PathPattern, Route, Switch } from 'wouter'
@@ -16,15 +16,15 @@ import { HashtagsPage } from './page/hashtags.tsx'
 import { Settings } from "./page/settings.tsx"
 import { TimelinePage } from './page/timeline'
 import { WritingPage } from './page/writing'
-import { ClientConfigContext, ConfigWrapper, defaultClientConfig, defaultClientConfigWrapper } from './state/config.tsx'
+import { ClientConfigContext, ConfigWrapper, defaultClientConfig } from './state/config.tsx'
 import { Profile, ProfileContext } from './state/profile'
 import { headersWithAuth } from './utils/auth'
 import { tryInt } from './utils/int'
 
 function App() {
   const ref = useRef(false)
   const [profile, setProfile] = useState<Profile | undefined>()
-  const [config, setConfig] = useState<ConfigWrapper>(defaultClientConfigWrapper)
+  const [config, setConfig] = useState<ConfigWrapper>(new ConfigWrapper({}, new Map()))
   useEffect(() => {
     if (ref.current) return
     if (getCookie('token')?.length ?? 0 > 0) {
@@ -57,12 +57,14 @@ function App() {
     }
     ref.current = true
   }, [])
+  const favicon = useMemo(() => config.get<string>("favicon"), [config])
   return (
     <>
       <ClientConfigContext.Provider value={config}>
         <ProfileContext.Provider value={profile}>
           <Helmet>
-            <link rel="icon" href={config.get("favicon")} />
+            {favicon &&
+              <link rel="icon" href={favicon} />}
           </Helmet>
           <Switch>
             <RouteMe path="/">

client/src/state/config.tsx

@@ -21,8 +21,9 @@ export class ConfigWrapper {
         this.defaultConfig = defaultConfig;
     }
     get<T>(key: string) {
-        if (this.config[key] != undefined) {
-            return this.config[key] as T;
+        const value = this.config[key];
+        if (value != undefined && value != "") {
+            return value as T;
         }
         if (this.defaultConfig.has(key)) {
             return this.defaultConfig.get(key) as T;