How to spoof a closed google form ("...no longer accepting responses")? I want to submit a form after deadline. How can I access and submit a form when it has been closed? The source of the closed form seems quite extensive. I wonder if it can be modified to spoof the original form?
It is impossible. The validation is both on front-end and back-end sides, so it is quite easy to edit HTML and JS to pass front-end side, but you can't do anything with back-end (server validation).