Enabling Flask autoescape on files with *jinja2 extension.
class JHtmlEscapingFlask(Flask):
def select_jinja_autoescape(self, filename):
if filename is None:
return False
if filename.endswith('.jinja2'):
return True
return Flask.select_jinja_autoescape(self, filename)
app = JHtmlEscapingFlask(__name__)