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caching control fixes

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This commit is contained in:
Hamid Reza Mohammadi 2026-09-15 07:57:27 +03:30
parent 1b2525346a
commit 3d94c92620
1 changed files with 25 additions and 8 deletions
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33
GanjooRazor/Startup.cs
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@ -145,18 +145,35 @@ namespace GanjooRazor
var isVendorPath = path.StartsWith("/lib/", StringComparison.OrdinalIgnoreCase) ||
path.StartsWith("/dist/", StringComparison.OrdinalIgnoreCase);
// Web font files (.woff/.woff2/.ttf/.otf/.eot) are effectively immutable in
// practice: swapping a live font's glyphs without renaming the file is rare
// enough (and disruptive enough to layout if it did happen) that treating every
// font as long-cacheable regardless of which folder it happens to sit in
// (/fonts, /css, wherever) is safe - this is what was missing for
// IranNastaliq-Web.woff2, the Vazirmatn set, and Material-Icons.woff2, which
// were stuck on the 6-hour tier purely because they live outside /lib and /dist.
var isFont = path.EndsWith(".woff2", StringComparison.OrdinalIgnoreCase) ||
path.EndsWith(".woff", StringComparison.OrdinalIgnoreCase) ||
path.EndsWith(".ttf", StringComparison.OrdinalIgnoreCase) ||
path.EndsWith(".otf", StringComparison.OrdinalIgnoreCase) ||
path.EndsWith(".eot", StringComparison.OrdinalIgnoreCase);
// A handful of specific third-party libraries that ended up directly under /js
// instead of /lib (so the path-prefix rule above doesn't catch them) but are
// just as static as anything that did. Add future drop-in vendor files here, or
// better, put them under /lib or /dist so they're covered automatically.
var isKnownVendorFile = path.Equals("/js/chart.js", StringComparison.OrdinalIgnoreCase) ||
path.Equals("/js/jquery.mark.min.js", StringComparison.OrdinalIgnoreCase);
var headers = ctx.Context.Response.GetTypedHeaders();
headers.CacheControl = new CacheControlHeaderValue
{
Public = true,
// Versioned (?version=N / ?v=N) and vendor assets: the URL itself changes
// whenever the content does, so a year-long cache is safe and is what should
// eliminate most of the repeated p8.css/bk.js/user-panel.css/js downloads seen
// in the IIS logs.
// Everything else: no version query to rely on, so a conservative 6-hour cache
// still cuts a lot of redundant requests without risking long-lived staleness
// if someone edits chart.js/r2.js/etc. without remembering to bump a version.
MaxAge = (isExplicitlyVersioned || isVendorPath)
// Versioned (?version=N / ?v=N), vendor, font, and known-vendor-in-the-
// wrong-folder assets: safe for a year-long cache. Everything else (the
// app's own hand-edited CSS/JS without a version query) stays on the
// conservative 6-hour cache so an un-versioned edit doesn't stay stale long.
MaxAge = (isExplicitlyVersioned || isVendorPath || isFont || isKnownVendorFile)
? TimeSpan.FromDays(365)
: TimeSpan.FromHours(6)
};