【Q】 "All Post Contact Form" automatically sends everything I want to POST, so I can freely and easily edit the form page, which is very useful. I am able to copy and paste forms from other companies that I like and use them for my site, which is very helpful, but yesterday when I tried to create a validation using my own javascript, there were some things that were not being picked up. What is the problem ( what can't be picked up by "All Post Contact Form" )?

"All Post Contact Form" automatically sends everything I want to POST, so I can freely and easily edit the form page, which is very useful. I am able to copy and paste forms from other companies that I like and use them for my site, which is very helpful, but yesterday when I tried to create a validation using my own javascript, there were some things that were not being picked up. What is the problem ( what can't be picked up by "All Post Contact Form" )?