[web] stop adding an Expires header with all responses
As per RFC 1945 (HTTP 1.0):
If the date given is equal to or earlier than the value of the Date
header, the recipient must not cache the enclosed entity.
As per RFC 7234 (HTTP 1.1 Caching):
If a response includes a Cache-Control field with the max-age
directive (Section 5.2.2.8), a recipient MUST ignore the Expires
field.
Bottom line, the Expires header is now handled wherever the
Cache-Control is handled: inside cache managers.
from __future__ import absolute_import
import markdown
import logging
log = logging.getLogger(__name__)
def markdown_publish(context, data):
"""publish a string formatted as MarkDown Text to HTML
:type context: a cubicweb application object
:type data: str
:param data: some MarkDown text
:rtype: unicode
:return:
the data formatted as HTML or the original data if an error occurred
"""
md = markdown.Markdown()
try:
return md.convert(data)
except:
import traceback; traceback.print_exc()
log.exception("Error while converting Markdown to HTML")
return data