Comment 3 for bug 1717615

Historically heat needed 'AllowEncodedSlashes On' for httpd deployment. Howerver, this was changed in pike heat (i.e you don't need to set that flag). python-heatclient 1.10.0[1] includes the relevant fix. Not sure what version of heat and python-heatclient you're using.

[1] https://github.com/openstack/python-heatclient/commit/a625d3bb93a18193058a09cb7887e9cfa4ea9df0