Animate CC - right click should be use only for contextmenu.

I developed one Ad in HTML canvas. I used below code for clicking to open new window.

this.mainButton.addEventListener("click", fl_ClickToGoToWebPage);

function fl_ClickToGoToWebPage() {

  window.open(window.clickTag, "new");

}

when i do left and right click, it open new window but i want, on right click, it should open only  context menu.

Please guide me.