Why does std::regex_match generate different results

I'm trying to use std::regex to validate some variables from a file in my c++11 project.

For now I need to validate if a string is a valid URL or not. Here is my code: https://godbolt.org/z/4Pn9eYEce

As you see, it works as expected. It returns a 1.

However, when I run the same code on my server, it returns a 0.

I really don't know why.

My server is Ubuntu 16.04.4 LTS, and the version of GCC is 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.11).