Association des Pilotes de Drone du Canada

Cours

{# Double-submit guard: a slow POST (mobile especially) invites an impatient second tap that races the first — that's what produced the duplicate quiz attempt and the duplicate-signup 500. On first submit we mark the form and, on the next tick (so the clicked button's name/value still posts), disable its submit controls; any further submit is blocked. Forms that fail native HTML5 validation never fire 'submit', so they aren't locked. No-JS clients are unaffected (the server handles races too). #}