Apache Http Server 2.4+
Configure manifest.webmanifest mime type 
You need to configure the following mime type (see basic configuration below):
ini
<IfModule mod_mime.c>
   # Manifest file
   AddType application/manifest+json webmanifest
</IfModule>
<IfModule mod_mime.c>
   # Manifest file
   AddType application/manifest+json webmanifest
</IfModule>
Basic configuration with http to https redirection
Update your httpd.conf configuration file with:
ini
# httpd.conf
ServerRoot "<your apache server root>"
Listen 80
ServerName www.yourdomain.com
DocumentRoot "<your document root>"
# modules
LoadModule mime_module modules/mod_mime.so
LoadModule rewrite_module modules/mod_rewrite.so
# mime types
<IfModule mod_mime.c>
   # Manifest file
   AddType application/manifest+json webmanifest
</IfModule>
# your https configuration
Include conf/extra/https-www.yourdomain.com.conf
<IfModule ssl_module>
    SSLRandomSeed startup builtin
    SSLRandomSeed connect builtin
</IfModule>
<VirtualHost www.yourdomain.com:80>
    ServerName www.yourdomain.com
    
    RewriteEngine On
    
    # disable TRACE and TRACK methods
    RewriteCond %{REQUEST_METHOD} ^(TRACE|TRACK)
    RewriteRule .* - [F]
    
    Options +FollowSymlinks
    RewriteCond %{SERVER_PORT} !443
    
    RewriteRule (.*) https://www.yourdomain.com/ [L,R]
    
    ErrorLog logs/www.yourdomain.com-error_log
    CustomLog logs/www.yourdomain.com-access_log combined
</VirtualHost>
# httpd.conf
ServerRoot "<your apache server root>"
Listen 80
ServerName www.yourdomain.com
DocumentRoot "<your document root>"
# modules
LoadModule mime_module modules/mod_mime.so
LoadModule rewrite_module modules/mod_rewrite.so
# mime types
<IfModule mod_mime.c>
   # Manifest file
   AddType application/manifest+json webmanifest
</IfModule>
# your https configuration
Include conf/extra/https-www.yourdomain.com.conf
<IfModule ssl_module>
    SSLRandomSeed startup builtin
    SSLRandomSeed connect builtin
</IfModule>
<VirtualHost www.yourdomain.com:80>
    ServerName www.yourdomain.com
    
    RewriteEngine On
    
    # disable TRACE and TRACK methods
    RewriteCond %{REQUEST_METHOD} ^(TRACE|TRACK)
    RewriteRule .* - [F]
    
    Options +FollowSymlinks
    RewriteCond %{SERVER_PORT} !443
    
    RewriteRule (.*) https://www.yourdomain.com/ [L,R]
    
    ErrorLog logs/www.yourdomain.com-error_log
    CustomLog logs/www.yourdomain.com-access_log combined
</VirtualHost>