[BUG] invalid content type for post request

[arminfelder]

yopass sends POST requests to the backend using content-type: text (default, as none is specified) , which freaks modsecurity out, as the MIME type of the payload should fit the content-type

see CoreRuleSet:

# In case Content-Type header can be parsed, check the mime-type against
# the policy defined in the 'allowed_request_content_type' variable.
# To change your policy, edit crs-setup.conf and activate rule 900220.
SecRule REQUEST_HEADERS:Content-Type "@rx ^[^;\s]+" \
    "id:920420,\
    phase:1,\
    block,\
    capture,\
    t:none,\
    msg:'Request content type is not allowed by policy',\
    logdata:'%{MATCHED_VAR}',\
    tag:'application-multi',\
    tag:'language-multi',\
    tag:'platform-multi',\
    tag:'attack-protocol',\
    tag:'paranoia-level/1',\
    tag:'OWASP_CRS',\
    tag:'capec/1000/255/153',\
    tag:'PCI/12.1',\
    ver:'OWASP_CRS/4.3.0',\
    severity:'CRITICAL',\
    setvar:'tx.content_type=|%{tx.0}|',\
    chain"
    SecRule TX:content_type "!@within %{tx.allowed_request_content_type}" \
        "t:lowercase,\
        setvar:'tx.inbound_anomaly_score_pl1=+%{tx.critical_anomaly_score}'"