If you missed the Google view image button in image search, use the below snippet to get it back again.

view_image_button_for_google

document.querySelector('body').addEventListener('click', function(event) {
  if (event.target.tagName.toLowerCase() === 'img' && event.target.className.toLowerCase() === 'irc_mi') {
    open_image(event)
  } else if(event.target.tagName.toLowerCase() === 'img' && event.target.className.toLowerCase().startsWith('irc_mut')){
	event.preventDefault();  
}
});
var open_image = function(event){event.preventDefault(); window.open(event.target.getAttribute("src"))}