forked from https://github.com/symfony/symfony
42712ee006
This PR was merged into the 3.4 branch.
Discussion
----------
[HttpFoundation] Use `Cache-Control: must-revalidate` only if explicit lifetime has been given
| Q | A
| ------------- | ---
| Branch? | 3.4
| Bug fix? | yes
| New feature? | no
| Deprecations? | no
| Tickets |
| License | MIT
| Doc PR |
This is really nit-picking: The conservative, safe default for `Cache-Control` is `private, no-cache` which means the response must not be served from cache unless it has been validated.
If `Last-Modified` or `Expires` are present, we can relax `no-cache` to be `must-revalidate`, which means that _once the response has become stale_, it must be revalidated.
An `ETag` alone does not give the response a lifetime, so IMO sticking with `no-cache` in this case would be more consistent.
Commits
-------
|
||
|---|---|---|
| .github | ||
| src/Symfony | ||
| .appveyor.yml | ||
| .editorconfig | ||
| .gitignore | ||
| .php_cs.dist | ||
| .travis.yml | ||
| CHANGELOG-3.0.md | ||
| CHANGELOG-3.1.md | ||
| CHANGELOG-3.2.md | ||
| CHANGELOG-3.3.md | ||
| CHANGELOG-3.4.md | ||
| CODE_OF_CONDUCT.md | ||
| composer.json | ||
| CONTRIBUTING.md | ||
| CONTRIBUTORS.md | ||
| LICENSE | ||
| link | ||
| phpunit | ||
| phpunit.xml.dist | ||
| README.md | ||
| UPGRADE-3.0.md | ||
| UPGRADE-3.1.md | ||
| UPGRADE-3.2.md | ||
| UPGRADE-3.3.md | ||
| UPGRADE-3.4.md | ||
| UPGRADE-4.0.md | ||
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Symfony is used by thousands of web applications (including BlaBlaCar.com and Spotify.com) and most of the popular PHP projects (including Drupal and Magento).
Installation
- Install Symfony with Composer (see requirements details).
- Symfony follows the semantic versioning strictly, publishes "Long Term Support" (LTS) versions and has a release process that is predictable and business-friendly.
Documentation
- Read the Getting Started guide if you are new to Symfony.
- Try the Symfony Demo application to learn Symfony in practice.
- Master Symfony with the Guides and Tutorials, the Components docs and the Best Practices reference.
Community
- Join the Symfony Community and meet other members at the Symfony events.
- Get Symfony support on Stack Overflow, Slack, IRC, etc.
- Follow us on GitHub, Twitter and Facebook.
- Read our Code of Conduct and meet the CARE Team
Contributing
Symfony is an Open Source, community-driven project with thousands of contributors. Join them contributing code or contributing documentation.
Security Issues
If you discover a security vulnerability within Symfony, please follow our disclosure procedure.
About Us
Symfony development is sponsored by SensioLabs, led by the Symfony Core Team and supported by Symfony contributors.