@bbockelm so, the link with `authz=_uri_encoded_envelope` that you curl-ed to server was successfully parsed? what xrootd version did you used? how did you enabled the logging of acc? anything else beside `ofs.trace -all acc` ? so, to answer your questions: 1. maybe xrootd version? so far mine is 4.12.5 and you can see the configuration [here](https://cernbox.cern.ch/index.php/s/V21naWT790be6p8) 2. https://github.com/cern-eos/xrootd-alicetokenacc see branch xrootd4 3. as far i can tell from activating debugging for XrdAliceTokenAcc, there is nothing that reach the plugin, so nothing is passed to it.. this lead me to the conclusion that is a problem of parsing from xrd.http component to downstream 4, nothing happens.. the output/error is the same, moreover EOS also does not accept the header -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/1320#issuecomment-724186588 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1