Is Math a MUST in computer science specificly in Software Development for Web servers
Your question seems to be based on the misunderstanding that software development = computer science.  They are not the same thing. Your questions starts out asking about software development, but then ends by asking about the roots and scientific aspects thereof, which brings you to computer science, so it is not entirely clear what you want.

If you want to focus on software development, then math is not required (though it will often come in handy). 

If you want to focus on computer science, then it is absolutely essential.