Progressive Enhancement for Resilient Web Forms
A web form does not need JavaScript to submit data. That native capability is a useful reliability baseline.
Progressive enhancement starts with semantic HTML and a server endpoint that can complete the operation, then adds JavaScript for faster feedback or richer interactions. If the enhancement fails, the core task still has a path to succeed.
This approach is valuable even in highly interactive applications because JavaScript can fail for ordinary reasons: slow networks, stale cached chunks, browser extensions, runtime exceptions, or a partial deployment.
