web.config this code is necesary when you deploy app in reactjs in (IIS) , Check if working for (Vuejs and Angularjs) this file is necesary inclounding in public folder

web.config

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
        <rewrite>
 <rules>
 <rule name="React Routes" stopProcessing="true">
 <match url=".*" />
 <conditions logicalGrouping="MatchAll">
 <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
 <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
 <add input="{REQUEST_URI}" pattern="^/(api)" negate="true" />
 </conditions>
 <action type="Rewrite" url="/" />
 </rule>
 </rules>
 </rewrite>
    </system.webServer>
</configuration>