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Guides

Share what’s on your machine. No account.

Each guide answers one question with the commands to run and what your recipient will see. They use the qURL™ CLI, which publishes a local app without a sign-up and hands you a link that works once and expires.

Fix a tunnel or dev-server error

Allow a tunnel’s hostname in your dev server

Which setting lets my dev server accept a tunnel’s hostname?

Fix Django “Invalid HTTP_HOST header” (DisallowedHost)

Why does Django say “Invalid HTTP_HOST header” when I open my app through a tunnel?

Fix Angular ng serve “Blocked request. This host is not allowed”

Why does ng serve say “Blocked request. This host is not allowed” when I open my app through a tunnel?

Fix webpack-dev-server “Invalid Host header” through a tunnel

Why does webpack-dev-server say “Invalid Host header” when I open my app through a tunnel?

Fix Astro “Blocked request. This host is not allowed”

Why does astro dev say “Blocked request. This host is not allowed” when I open my site through a tunnel?

Fix SvelteKit “Blocked request. This host is not allowed”

Why does SvelteKit say “Blocked request. This host is not allowed” when I open my app through a tunnel?

Fix Nuxt “Blocked request. This host is not allowed”

Why does nuxt dev say “Blocked request. This host is not allowed” when I open my app through a tunnel?

Fix Rails “Blocked hosts” through a tunnel

Why does Rails say “Blocked hosts” when I open my app through a tunnel?

Fix Vite “Blocked request. This host is not allowed”

Why does Vite say “Blocked request. This host is not allowed” when I open my app through a tunnel?

Fix Next.js “Blocked cross-origin request to Next.js dev resource”

Why does next dev block requests when I open my app through a tunnel?

Get past the ngrok browser warning (ERR_NGROK_6024)

How do I get rid of the ngrok “You are about to visit” warning page?

Fix hot reload through a tunnel

Why doesn’t hot reload work when I open my dev server through a tunnel?

Pilot LayerV

Tell us what to protect, and we’ll scope a pilot.

Enterprise starts with a scoped, paid pilot on one application, typically 60 to 90 days, credited in full toward year one if you convert within 60 days. Then an annual package sized to what you protect. Not per seat.