When accessing ipfs://QmUVTKsrYJpaxUT7dr9FpKq6AoKHhEM7eG1ZHGL56haKLG, the link is converted to lowercase, and an error message appears because of that.

To Reproduce

1. Install ipfs-companion 2.19.0 on Firefox 89 from https://addons.mozilla.org/en-US/firefox/addon/ipfs-companion/
2. start ipfs daemon on the command-line
3. copy-paste this into the URL bar: ipfs://QmUVTKsrYJpaxUT7dr9FpKq6AoKHhEM7eG1ZHGL56haKLG
4. the url rapidly changes to ipfs://qmuvtksryjpaxut7dr9fpkq6aokhhem7eg1zhgl56haklg and then to https://dweb.link/ipfs/qmuvtksryjpaxut7dr9fpkq6aokhhem7eg1zhgl56haklg which shows the following error:

invalid ipfs path: invalid path "/ipfs/qmuvtksryjpaxut7dr9fpkq6aokhhem7eg1zhgl56haklg": invalid CID: selected encoding not supported (possible lowercased CIDv0; consider converting to a case-agnostic CIDv1, such as base32)

Expected behaviour

The URL should stay ipfs://QmUVTKsrYJpaxUT7dr9FpKq6AoKHhEM7eG1ZHGL56haKLG or be converted to http://QmUVTKsrYJpaxUT7dr9FpKq6AoKHhEM7eG1ZHGL56haKLG.ipfs.localhost:8080/ or some other proxy, and a page containing the text Hello IPFS should appear.

Screenshots

Desktop

• OS: Linux (Ubuntu 20.04 Focal, ipfs installed via nixpkgs)
• Browser: Firefox 89.0 64-bit (installed via nixpkgs)
• ipfs --version: ipfs version 0.8.0
• ipfs-companion version: 2.19.0

Additional context

• Entering https://dweb.link/ipfs/QmUVTKsrYJpaxUT7dr9FpKq6AoKHhEM7eG1ZHGL56haKLG in the URL bar works (and redirects to http://bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu.ipfs.localhost:8080/)

• Entering ipfs://bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu in the URL bar works (and redirects to http://bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu.ipfs.localhost:8080/)

• Entering /ipfs/QmUVTKsrYJpaxUT7dr9FpKq6AoKHhEM7eG1ZHGL56haKLG in the URL bar works (and redirects to file:///ipfs/QmUVTKsrYJpaxUT7dr9FpKq6AoKHhEM7eG1ZHGL56haKLG)

• Entering /ipfs/bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu in the URL bar works (and redirects to file:///ipfs/bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu)

• Entering QmUVTKsrYJpaxUT7dr9FpKq6AoKHhEM7eG1ZHGL56haKLG.ipfs.localhost:8080 in the URL bar DOES NOT WORK (it gets redirected to http://qmuvtksryjpaxut7dr9fpkq6aokhhem7eg1zhgl56haklg.ipfs.localhost:8080/)

• Entering bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu.ipfs.localhost:8080 in the URL bar works (and redirects to http://bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu.ipfs.localhost:8080/)

• Entering ipfs://ipfs/QmUVTKsrYJpaxUT7dr9FpKq6AoKHhEM7eG1ZHGL56haKLG in the URL bar works (and redirects to http://bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu.ipfs.localhost:8080/)

• Entering ipfs://ipfs/bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu in the URL bar works (and redirects to http://bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu.ipfs.localhost:8080/)

• Entering ipfs://./QmUVTKsrYJpaxUT7dr9FpKq6AoKHhEM7eG1ZHGL56haKLG in the URL bar works (and redirects to http://bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu.ipfs.localhost:8080/)

• Entering ipfs://./bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu in the URL bar works (and redirects to http://bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu.ipfs.localhost:8080/)

• Entering ipfs:./QmUVTKsrYJpaxUT7dr9FpKq6AoKHhEM7eG1ZHGL56haKLG in the URL bar works (and redirects to http://bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu.ipfs.localhost:8080/)

• Entering ipfs:./bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu in the URL bar works (and redirects to http://bafybeic3m55e3k75my22xepbnga5m7gao5dzvtwpnyjkebjqir54dlngfu.ipfs.localhost:8080/)

A similar issue has been reported in the past, and closed as fixed: #815