Ask HN: What are some client side hacks you use on a website?
By client side hack I mean bypassing a restriction of a web application through a client side modification (bypassing the JS code or modifying the html form).
You used to be able to send a POST request containing a comment for sites with comments disabled, and the comment still got submitted for the article. Newer versions of Wordpress don't let the comment through anymore. You used to be able to spam the admin area of Wordpress against the admin's wishes.