window.open(url) not opening new web page in the same tab

Question

window.open(\"index.php\"); does not open the new page in the same tab, it opens it in a new tab.

I tried window.open(\"index.php\",

Answer 1

window.open will open in new tab if action is synchronous and invoked by user. If you remove async: false from ajax options (and this method is invoked by user for example by clicking a button), then new window will open instead of new tab. For simple navigation set window.location.href