Hi,
I have 2 html files where I need to access.
So I want to use 'getElementById' in first file, and want to do same thing in second file.
Accessing first file is ok, there is no problem because it is index.html file.
But I cannot access second page's element.
How can i getElementById in second file.
This is error message : app.js (101) :TypeError: 'null' is not an object (evaluating 'authButton.addEventListener')