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Update docs with "strict-..." policies

This commit is contained in:
Paul Tremberth 2017-01-17 22:31:29 +01:00
parent b6c761d2b4
commit c86f568b9c
1 changed files with 12 additions and 3 deletions
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15
docs/topics/spider-middleware.rst
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@ -344,9 +344,18 @@ This setting accepts:
- a path to a ``scrapy.spidermiddlewares.referer.ReferrerPolicy`` subclass,
either a custom one or one of the built-in ones
(see ``scrapy.spidermiddlewares.referer``),
- or one of the standard W3C-defined string values, i.e. ``"no-referrer"``,
``"no-referrer-when-downgrade"``, ``"same-origin"``, ``"origin"``,
``"origin-when-cross-origin"`` or ``"unsafe-url"``.
- or one of the standard W3C-defined string values:
- `"no-referrer" <https://www.w3.org/TR/referrer-policy/#referrer-policy-no-referrer>`_,
- `"no-referrer-when-downgrade" <https://www.w3.org/TR/referrer-policy/#referrer-policy-no-referrer-when-downgrade>`_,
- `"same-origin" <https://www.w3.org/TR/referrer-policy/#referrer-policy-same-origin>`_,
- `"origin" <https://www.w3.org/TR/referrer-policy/#referrer-policy-origin>`_,
- `"strict-origin" <https://www.w3.org/TR/referrer-policy/#referrer-policy-strict-origin>`_,
- `"origin-when-cross-origin" <https://www.w3.org/TR/referrer-policy/#referrer-policy-origin-when-cross-origin>`_,
- `"strict-origin-when-cross-origin" <https://www.w3.org/TR/referrer-policy/#referrer-policy-strict-origin-when-cross-origin>`_,
- or `"unsafe-url" <https://www.w3.org/TR/referrer-policy/#referrer-policy-unsafe-url>`_
(not recommended).
(It can also be the non-standard value ``"scrapy-default"`` to use
Scrapy's default referrer policy.)