Re: Inviting feedback on my proposed "ASGI" spec

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> On 10 Mar 2016, at 18:36, Andrew Godwin <[email protected]> wrote:
>=20
>=20
> Second, if it were me I=E2=80=99d remove the `status_text` field on =
the `Response` object. Custom status text is a terrible misfeature =
(especially as HTTP/2 doesn=E2=80=99t support it), and in 99% of cases =
you=E2=80=99re just wasting data by repeatedly sending the default =
phrase that the server already knows.
>=20
> Well, it IS optional; you only need to send it if you're changing it =
from the default or providing an unusual new value (e.g. 418). We could =
change the spec to say servers don't have to abide by it, too. I have =
done a project in the past with custom reason phrases, that's all :)

You monster! ;)

For what it=E2=80=99s worth, I object to the use of reason phrases =
because, as with all things in HTTP, they were far-too-broadly =
specified. The rules for parsing the reason phrase are super broad (the =
reason phrase allows \t, space, and then all bytes from 0x21 to 0xFF =
*excluding* 0x7F (ASCII DEL). This means that it=E2=80=99s sometimes =
possible to encode a reason phrase containing non-ASCII/non-Latin-1 =
codepoints in UTF-8 (I=E2=80=99ve seen this happen), and then everything =
gets really terrible really fast.

IMO, I think almost nothing would be lost by just quietly removing it =
from the specification. The only loss is in setting =E2=80=9Cunusual=E2=80=
=9D values, and FWIW I think that=E2=80=99s *also* unwise: if it can=E2=80=
=99t be found here[0] then the unusual status code is nothing but =
vanity, because it=E2=80=99s no more precise than the X00 version that =
already exists (no user agent can take action on it).

Again, just my 2=C2=A2.

Cory


[0]: =
https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml=


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