Mixed HTTP/HTTPS Content on Replit
Browser shows mixed content warning or blocks insecure resources. Deployed app mixes secure HTTPS with insecure HTTP requests.
Modern browsers block HTTP content loaded from HTTPS pages.
Error Messages You Might See
Common Causes
- Hardcoded http:// URLs in templates instead of https://
- External resources (CDN, API) using HTTP
- WebSocket using ws:// instead of wss://
- Relative URLs containing scheme
How to Fix It
Use relative URLs when possible: /api/endpoint instead of https://domain.com/api. Always use https:// for external resources and wss:// for WebSocket on HTTPS sites. Use Thymeleaf @{} for relative URLs. Check browser console (F12) for mixed content warnings. Force HTTPS with server.http2.enabled=true and redirect http to https.
Real developers can help you.
Sage Fulcher
Hey I'm Sage! Im a Boston area software engineer who grew up in South Florida. Ive worked at a ton of cool places like a telehealth kidney care startup that took part in a billion dollar merger (Cricket health/Interwell health), a boutique design agency where I got to work on a ton of exciting startups including a photography education app, a collegiate Esports league and more (Philosophie), a data analytics as a service startup in Cambridge (MA) as well as at Phillips and MIT Lincoln Lab where I designed and developed novel network security visualizations and analytics. I've been writing code and furiously devoted to using computers to make people’s lives easier for about 17 years. My degree is in making computers make pretty lights and sounds. Outside of work I love hip hop, the Celtics, professional wrestling, magic the gathering, photography, drumming, and guitars (both making and playing them)
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.
Dor Yaloz
SW engineer with 6+ years of experience,
I worked with React/Node/Python
did projects with React+Capacitor.js for ios
Supabase expert
Luca Liberati
I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture
legrab
I'll fill this later
Pratik
SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure
Kingsley Omage
Fullstack software engineer passionate about AI Agents, blockchain, LLMs.
hanson1014
Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround.
Nam Tran
10 years as fullstack developer
Antriksh Narang
5 years+ Experienced Dev (Specially in Web Development), can help in python, javascript, react, next.js and full stack web dev technologies.
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
Should I use absolute or relative URLs?
Relative URLs (/path) when possible. Absolute URLs only for external domains
What about external CDNs?
Ensure CDN supports HTTPS. Most modern CDNs use HTTPS by default