The URL as an error message shows it: every query-parameter value longer than
MAX_SHOWN_PARAM_LENGTH characters (as sent, percent-encoded) is replaced by
…. The data query's layer parameter carries the whole SQL join as
URL-encoded JSON (about 750 characters), which pushed the actual reason to the
end of an 800-character line. The error's url field keeps the full URL.
The URL as an error message shows it: every query-parameter value longer than
MAX_SHOWN_PARAM_LENGTHcharacters (as sent, percent-encoded) is replaced by…. The data query'slayerparameter carries the whole SQL join as URL-encoded JSON (about 750 characters), which pushed the actual reason to the end of an 800-character line. The error'surlfield keeps the full URL.