gofiber/fiber · error · ErrRedirectDowngrade

client: HTTPS to HTTP redirect blocked

Error message

client: HTTPS to HTTP redirect blocked

What it means

Error "client: HTTPS to HTTP redirect blocked" thrown in gofiber/fiber.

Source

Thrown at client/errors.go:19

package client

import (
	"errors"
)

var (
	errResponseChanTypeAssertion = errors.New("failed to type-assert to *Response")
	errChanErrorTypeAssertion    = errors.New("failed to type-assert to chan error")
	errRequestTypeAssertion      = errors.New("failed to type-assert to *Request")
	errFileTypeAssertion         = errors.New("failed to type-assert to *File")
	errCookieJarTypeAssertion    = errors.New("failed to type-assert to *CookieJar")
	errSyncPoolBuffer            = errors.New("failed to retrieve buffer from a sync.Pool")

	// ErrRedirectDowngrade is returned when DoRedirects encounters a
	// redirect from an HTTPS origin to a plaintext HTTP target.
	// Following such a redirect would leak any credentials, cookies, or
	// session tokens that the original HTTPS handshake protected.
	ErrRedirectDowngrade = errors.New("client: HTTPS to HTTP redirect blocked")
)

View on GitHub (pinned to 9a4c7e57fe)

When it happens

Trigger: Thrown at client/errors.go:19 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of gofiber/fiber@9a4c7e57fe (2026-08-04). Data as JSON: /data/errors/6265bb2ae6fd2cf4.json. Report an issue: GitHub.