_headers

---
# Netlify _headers template. See syntax on https://docs.netlify.com/routing/headers/.
#
# This configuration sets default headers for pages and API responses, and:
# - a CSP and a "Link" header pointing to the API for product pages,
# - a more restrictive CSP for non-product pages,
# - a CSP that allows Stoplight Elements to load correctly for /docs/api.
#
# For a rationale of all the CSP headers, see https://github.com/endoflife-date/endoflife.date/wiki/CSP-Headers.

# Setting a layout forces Jekyll to render this file.
layout: null
---
# Default headers for all pages.
/*
  X-Frame-Options: DENY
  X-XSS-Protection: 1; mode=block
  # Generated using https://www.permissionspolicy.com/
  Permissions-Policy: accelerometer=(), ambient-light-sensor=(), autoplay=(), battery=(), camera=(), cross-origin-isolated=(), display-capture=(), document-domain=(), encrypted-media=(), execution-while-not-rendered=(), execution-while-out-of-viewport=(), fullscreen=(), geolocation=(), gyroscope=(), keyboard-map=(), magnetometer=(), microphone=(), midi=(), navigation-override=(), payment=(), picture-in-picture=(), publickey-credentials-get=(), screen-wake-lock=(), sync-xhr=(), usb=(), web-share=(), xr-spatial-tracking=(), clipboard-read=(), clipboard-write=(), gamepad=(), speaker-selection=(), conversion-measurement=(), focus-without-user-activation=(), hid=(), idle-detection=(), interest-cohort=(), serial=(), sync-script=(), trust-token-redemption=(), unload=(), window-placement=(), vertical-scroll=()
  X-Content-Type-Options: nosniff
  Referrer-Policy: strict-origin
  Strict-Transport-Security: max-age=31536000; includeSubDomains; preload

# Default headers for static resources
/assets/*
  Cache-Control : public, max-age=3600;
/browserconfig.xml
  Cache-Control : public, max-age=3600;
/favicon.ico
  Cache-Control : public, max-age=3600;
/manifest.json
  Cache-Control : public, max-age=3600;

# Default headers for API resources.
/api*
  Access-Control-Allow-Origin: *
  Access-Control-Allow-Methods: GET
  Access-Control-Max-Age: 86400

# Default headers for calendar resources.
/calendar/*
  Access-Control-Allow-Origin: *
  Access-Control-Allow-Methods: GET
  Access-Control-Max-Age: 86400

# Configuration for all "pages" in the website (e.g. product pages, website pages such as / or /recommendations, API "pages"...).
{% assign defaultCspImgSrc="'self' https://img.shields.io https://www.netlify.com https://cdn.jsdelivr.net/ https://github.githubassets.com/ https://user-images.githubusercontent.com/" %}
{%- for page in site.html_pages -%}
{{page.url}}
  {%- if page.layout == 'product' %}
    {%- if page.releaseImage %}
      {% capture releaseImageSrc %}https://{{ page.releaseImage | parse_uri: 'host' }}{% endcapture %}
    {% else %}
      {% assign releaseImageSrc="" %}
    {% endif %}
    Content-Security-Policy: default-src 'none'; manifest-src 'self'; connect-src 'self'; script-src 'self'; style-src 'self'; img-src {{ defaultCspImgSrc }} {{ releaseImageSrc }}
    Link: /api{{page.permalink}}.json; rel=alternate;type=application/json
    Link: /calendar{{page.permalink}}.ics; rel=alternate;type=text/calendar
  {% elsif page.permalink == '/docs/api' %}
    Content-Security-Policy: default-src 'none'; manifest-src 'self'; connect-src 'self'; script-src 'self' https://unpkg.com/@stoplight/elements/web-components.min.js; style-src 'self' https://unpkg.com/@stoplight/elements/
  {% else %}
    Content-Security-Policy: default-src 'none'; manifest-src 'self'; connect-src 'self'; script-src 'self'; style-src 'self'; img-src {{ defaultCspImgSrc }}
  {% endif %}
{% endfor %}