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Login fails behind nginx reverse proxy with basic auth

Duplicati login fails when placed behind an nginx reverse proxy that also requires basic authentication.

Tier II · Emerging Problems that are still building up.

3 public reports · first reported 16 July 2026 · last reported 18 July 2026

Idea report · $9 · No contacts · All sales final

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What's going wrong

Users running the backup server in a container behind nginx wanted two login layers, one from nginx basic authentication and one from the application.

AI-assisted: written with the help of AI from the reports. The idea report has the full summary.

In the idea report

  • The full summary.
  • The products the 3 reports are about, and how many came each month.
  • Related problems.

No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.