When I'm trying to type wrong URL of my website an application/octet-stream is downloaded. for example URL is www.example.com/example/example this is right url and works properly but when I write url like www.example.com/example/exa or like www.example.com/exa
then an application/octet-stream is downloaded. Any one tell me why this is happening and give me solution. I'm using a PHP website.