My custom HTML/CSS/JS survey form freezes when visitors hit the “Finish” button—no redirect, no thank-you screen, just a stall. The glitch seems to surface around the multiple-choice questions, yet the root cause could sit anywhere in the front- or back-end logic. I need a rapid, same-day turnaround that: • Pinpoints why the Finish action fails • Repairs any JavaScript, validation, or markup errors preventing submission • Ensures the survey posts correctly to the existing back-end handler (or alerts me if the issue lies server-side) • Verifies flawless performance on both desktop and mobile, sharing evidence of successful submissions You’ll work directly in vanilla HTML, CSS, and JavaScript—no WordPress, no React—so feel free to streamline code where helpful. Access details (repository or FTP) are ready as soon as we agree on a fair quote and timetable.