Sarven Capadisli created JENA-510:
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Summary: Incorrect content negotiation with */* in Accept header
Key: JENA-510
URL: https://issues.apache.org/jira/browse/JENA-510
Project: Apache Jena
Issue Type: Bug
Components: ARQ, Fuseki, TDB
Affects Versions: Jena 2.10.2
Reporter: Sarven Capadisli
If I'm not mistaken, when */* content type is used in Accept header, content
negotiation is incorrect. For curl -X GET
http://sparql.org/books/sparql?query=SELECT+*+WHERE+%7B+%3Fs+%3Fp+%3Fo+%7D+LIMIT+1
compare:
application/sparql-results+json =>
application/sparql-results+json
application/sparql-results+json;q=0.1 =>
application/sparql-results+json
*/* =>
application/sparql-results+json
*/*;q=0.1 =>
application/sparql-results+json
application/sparql-results+json;q=0.1, */*;q=0.9 =>
application/sparql-results+json
application/sparql-results+json;q=0.9, */*;q=0.1 => text/csv
application/sparql-results+json;q=0.9, */*;q=0.9 => text/csv
It appears to be that, if the q-value of these two content-types are compared,
the output content-type is incorrect.
Here is an awkward one:
application/sparql-results+xml;q=0.1, */*;q=0.9 =>
application/sparql-results+json
application/sparql-results+xml;q=0.9, */*;q=0.1 =>
application/sparql-results+json
application/sparql-results+xml;q=0.9, */*;q=0.9 =>
application/sparql-results+json
What's going on now?
Just for completeness:
application/sparql-results+xml;q=0.1, application/sparql-results+json;q=0.9
=> application/sparql-results+json
application/sparql-results+xml;q=0.9, application/sparql-results+json;q=0.1
=> application/sparql-results+xml
application/sparql-results+xml;q=0.9, application/sparql-results+json;q=0.9
=> application/sparql-results+json
That looks okay.
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