Making a website. Which is better to include either to include cdn for bootstrap js Ajax or downloading the library in server?

Question

If cdn then cdn for each page or including the common file for them?

Answer 1

Better to use downloaded file Because sometimes maybe cdn will not work so it will not affect your website.

Generally we make a common header file throughout a Website. It is good practice to make common header file because in every page we need same links. So if we change in common file then it will automatically affect to other files. No need to go on each file to update header because suppose we have more than 100 files so it will be not possible to change in each file. So better to use common header file.

Answer 2

Thanks.
I am working on forgot password module. Receiving email in gmail account but not in business domain account. What kind of error?
Thanks in advance.