If attachment filename is bytes type and contains non-ascii coded bytes,
then the following ASCII encoding process will trigger
UnicodeDecodeError exception.
Fix issue #2933.
See: https://www.python.org/dev/peps/pep-0519/
This is mostly encountered with pathlib in python 3, but this API
suggests any PathLike object can be treated like a filepath with
`__fspath__` function.
We've discovered that passing Unicode in Host actually works, except for
test client limitations on Python 2 - and the only things that don't
work are non-printable characters.
If create_url_adapter raises (which it can if werkzeug cannot bind
environment, for example on non-ASCII Host header), we handle it as
other routing exceptions rather than raising through.
ref https://github.com/pallets/werkzeug/issues/640
Flask currently supports importing app through a combination of module
path and app variable name, such as '/usr/app.py:my_app'. When the
module path contains a colon, it will conflict with this import way and
a `flask.cli.NoAppException` will be raised.
A file path on a Windows system may contain a colon followed by a slash.
So we solved this problem on Windows by ignoring the colon followed by a
slash when we split app_import_path.
Fix issue #2961.
This is mainly intended for custom CLIs that may load a config file
which already sets the debug flag and does not make use of the `FLASK_*`
env vars at all.
Change the default value of ``index`` to ``None`` in ``register()`` so
that it is possible to insert a new tag as the penultimate item in the
order list.
rename new subdomain test, parametrize
test allowing subdomains as well as ips
add subdomain_matching param to docs
add some references to docs
add version changed to create_url_adapter
