[ https://issues.apache.org/jira/browse/COUCHDB-1697?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ryan Ramage updated COUCHDB-1697: --------------------------------- Assignee: Ryan Ramage > if-none-match header causes 500 internal server error on CORS requests > ---------------------------------------------------------------------- > > Key: COUCHDB-1697 > URL: https://issues.apache.org/jira/browse/COUCHDB-1697 > Project: CouchDB > Issue Type: Bug > Components: HTTP Interface > Affects Versions: 1.3 > Reporter: Ryan Ramage > Assignee: Ryan Ramage > > Browsers can send a if-none-match header to couchdb, but this can will break > when CORS is enabled. The reason seems to be the header comes in as a binary, > eg from the debug log the header is: > {'If-None-Match',"\"V9J3604P4V9VTR5H77SBHJW\""}, > When maybe_apply_cors_headers is called, the assumption is that the headers > are strings. This can be seen here: > https://github.com/apache/couchdb/blob/b0420f9006915149e81607615720f32f21c76725/src/couchdb/couch_httpd_cors.erl#L219 > Thus a string:to_lower is undefined as can be seen in this stacktrace: > [info] [<0.148.0>] Stacktrace: [{string,to_lower, > [undefined], > [{file,"string.erl"},{line,468}]}, > {couch_httpd_cors,maybe_apply_cors_headers,2, > [{file, > > "/Users/jan/Work/build-couchdb-mac/build-couchdb/git-build/https%3A%2F%2Fgit-wip-us.apache.org%2Frepos%2Fasf%2Fcouchdb.git%3A06c3f351f158f107a8293c7c6c9b2415b942f0e9/src/couchdb/couch_httpd_cors.erl"}, > {line,219}]}, > {couch_httpd,send_response,4, > [{file, > See original gist > https://gist.github.com/ryanramage/5143964#file-gistfile1-txt-L64 -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira