This enables host_matching to be set properly by the time the constructor adds
the static route, and enables the static route to be properly associated with
the required host.
Previously, you could only enable host_matching once your app was already
instantiated (e.g. app.url_map.host_matching = True), but at that point
the constructor would have already added the static route without host matching
and an associated host, leaving the static route in a broken state.
Fixes#1559.
The example code uses `flash` but doesn't import it. So the code as written doesn't work.
This simply adds `flash` to the list of imports in the sample code.
Before:
```
C:\dev\tmp>py -2 -m flask run
Traceback (most recent call last):
File "C:\Python27\lib\runpy.py", line 174, in _run_module_as_main
"__main__", fname, loader, pkg_name)
File "C:\Python27\lib\runpy.py", line 72, in _run_code
exec code in run_globals
File "c:\dev\sourcetree\flask\flask\__main__.py", line 15, in <module>
main(as_module=True)
File "c:\dev\sourcetree\flask\flask\cli.py", line 523, in main
cli.main(args=args, prog_name=name)
File "c:\dev\sourcetree\flask\flask\cli.py", line 383, in main
return AppGroup.main(self, *args, **kwargs)
File "C:\Python27\lib\site-packages\click\core.py", line 697, in main
rv = self.invoke(ctx)
File "C:\Python27\lib\site-packages\click\core.py", line 1066, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "C:\Python27\lib\site-packages\click\core.py", line 895, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "C:\Python27\lib\site-packages\click\core.py", line 535, in invoke
return callback(*args, **kwargs)
File "C:\Python27\lib\site-packages\click\decorators.py", line 64, in new_func
return ctx.invoke(f, obj, *args[1:], **kwargs)
File "C:\Python27\lib\site-packages\click\core.py", line 535, in invoke
return callback(*args, **kwargs)
File "c:\dev\sourcetree\flask\flask\cli.py", line 433, in run_command
app = DispatchingApp(info.load_app, use_eager_loading=eager_loading)
File "c:\dev\sourcetree\flask\flask\cli.py", line 153, in __init__
self._load_unlocked()
File "c:\dev\sourcetree\flask\flask\cli.py", line 177, in _load_unlocked
self._app = rv = self.loader()
File "c:\dev\sourcetree\flask\flask\cli.py", line 238, in load_app
rv = locate_app(self.app_import_path)
File "c:\dev\sourcetree\flask\flask\cli.py", line 91, in locate_app
__import__(module)
File "C:\dev\tmp\error.py", line 1, in <module>
import whatisthisidonteven
ImportError: No module named whatisthisidonteven
```
After:
```
C:\dev\tmp>py -2 -m flask run
Usage: python -m flask run [OPTIONS]
Error: There was an error trying to import the app (error):
Traceback (most recent call last):
File "c:\dev\sourcetree\flask\flask\cli.py", line 91, in locate_app
__import__(module)
File "C:\dev\tmp\error.py", line 1, in <module>
import whatisthisidonteven
ImportError: No module named whatisthisidonteven```
* Don't rely on X-Requested-With for pretty print json response
* Fix test cases for pretty print json patch
* Fix gramma error in docs for pretty print json config
* Add changelog for JSONIFY_PRETTYPRINT_REGULAR
* Add tips for debug config with flask cli
`app.debug` and `app.config['DEBUG']` are not compatible with the `flask` script.
* Grammar fix
* Grammar fix
