Through the router: a source query holding "'" must reach the upstream
as %27. The generator page must answer 400, show the URL pixa would
fetch and make no encrypted URL for a source path holding %2F next to a
space, a "|" or a letter outside ASCII, and for a source URL holding a
user name and password. It must also refuse a source path holding a ".."
segment, as /v1/image/ does. These fail on the branch; the fix follows.
Model: opus-5-5
sneak
5bfec71b61