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posts: don't send cookies for thumbnail requests.

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Set `crossorigin="anonymous"` on the <img> tag for thumbnails. This
makes it so we don't send session cookies in requests for thumbnails.
Since images are served from cdn.donmai.us, and since session cookies
are set on *.donmai.us, session cookies are sent by default with every
thumbnail request.

Not sending cookies saves up to 1kb of overhead per thumbnail request
(in reality, it's less than this because of HTTP/2 multiplexing and
header compression).
This commit is contained in:
evazion
2021-09-26 07:12:02 -05:00
parent 7d3eebaced
commit 960817e9fe
1 changed files with 1 additions and 1 deletions
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2
app/components/post_preview_component/post_preview_component.html.erb
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@@ -3,7 +3,7 @@
<%= tag.picture do -%>
<%= tag.source media: "(max-width: 660px)", srcset: cropped_url -%>
<%= tag.source media: "(min-width: 660px)", srcset: post.preview_file_url -%>
<%= tag.img class: "has-cropped-#{post.has_cropped?}", src: post.preview_file_url, style: "min-width: #{preview_dimensions[:width]}px; min-height: #{preview_dimensions[:height]}px;", title: tooltip, alt: "post ##{post.id}" -%>
<%= tag.img class: "has-cropped-#{post.has_cropped?}", src: post.preview_file_url, style: "min-width: #{preview_dimensions[:width]}px; min-height: #{preview_dimensions[:height]}px;", title: tooltip, alt: "post ##{post.id}", crossorigin: "anonymous" -%>
<% end -%>
<% end -%>
<% if pool -%>