not opening the popup in window

Question

my this link is not opening the new link in a pop up It is opening on the new tab.i want it to open in a proper pop up

<button class="button button1" onclick=" window.open('test1.php')" style ="padding-top=20px"> Generater Receipt</button>

Answer 1

You can use this code to open it in popup

<button class="button button1" onclick=" window.open('test1.php' ,'_blank')" style ="padding-top=20px"> Generater Receipt</button>