Common Issues
ui
Form Validation Not Working Properly
Forms in your app don't validate input correctly. They might accept invalid data (empty required fields, invalid emails), show error messages that don't match the problem, or refuse to submit even with valid data.
Common Causes
- Validation only on the frontend — no server-side checks
- Validation rules don't match the actual requirements
- Error messages are generic or misleading
- Form state management is buggy — the form doesn't know which fields changed
- Submit button disabled permanently after one failed submission
How to Fix It
- Test each form field with empty, invalid, and valid data to identify which validations are broken
- Check the browser console for JavaScript errors during form submission
- Verify that the server also validates data — don't rely only on frontend validation
- Make sure the submit button re-enables after validation errors are fixed
- Check that error messages clearly indicate which field has the problem
Real developers can help you.
Anthony Akpan
Developer with 8 years of experience building softwares fro startups
Matthew Jordan
I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job.
Pratik
SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure
Tejas Chokhawala
Full-stack engineer with 5 years experience building production web apps using React, Next.js and TypeScript.
Focused on performance, clean architecture and shipping fast.
Experienced with Supabase/Postgres backends, Stripe billing, and building AI-assisted developer tools.
MFox
Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking.
PawelPloszaj
I'm fronted developer with 10+ years of experience with big projects. I have small backend background too
Simon A.
I'm a backend developer building APIs, emulators, and interactive game systems. Professionally, I've developed Java/Spring reporting solutions, managed relational and NoSQL databases, and implemented CI/CD workflows.
Omar Faruk
As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience.
My work spanned building and refining core features, developing dynamic website templates, integrating secure and reliable payment gateways, and optimizing the overall system architecture.
I played a key role in creating a scalable and maintainable platform to support educators and learners globally.
I'm enthusiastic about embracing new challenges and making meaningful contributions.
Yovel Cohen
I got a lot of experience in building Long-horizon AI Agents in production, Backend apps that scale to millions of users and frontend knowledge as well.
Jaime Orts-Caroff
I'm a Senior Android developer, open to work in various fields
Describe what's wrong in plain English. No technical knowledge needed.
Get HelpFrequently Asked Questions
The form submits but doesn't save the data. What's wrong?
The frontend form is probably submitting but the API call to save the data is failing. Check the Network tab for errors on the submit request.
I can't submit the form even with valid data. Why?
The validation logic might have a bug that always marks a field as invalid. Check the console for errors, or the submit button might be stuck in a disabled state.