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fix: make non-existent asset paths return a 404 #14472

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Merged
merged 2 commits into from
Aug 29, 2024
Merged

fix: make non-existent asset paths return a 404 #14472

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e6cc650
fix: make non-existent asset paths return a 404
code-asher Aug 28, 2024
8c02c28
fix: typo
code-asher Aug 28, 2024
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12 changes: 12 additions & 0 deletions site/site.go
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Original file line number Diff line number Diff line change
Expand Up @@ -205,6 +205,18 @@ func (h *Handler) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
case reqFile == "bin" || strings.HasPrefix(reqFile, "bin/"):
h.handler.ServeHTTP(rw, r)
return
// If requesting assets, serve straight up with caching.
case reqFile == "assets" || strings.HasPrefix(reqFile, "assets/"):
// It could make sense to cache 404s, but the problem is that during an
// upgrade a load balancer may route partially to the old server, and that
// would make new asset paths get cached as 404s and not load even once the
// new server was in place. To combat that, only cache if we have the file.
if h.exists(reqFile) && ShouldCacheFile(reqFile) {
rw.Header().Add("Cache-Control", "public, max-age=31536000, immutable")
}
// If the asset does not exist, this will return a 404.
h.handler.ServeHTTP(rw, r)
return
// If the original file path exists we serve it.
case h.exists(reqFile):
if ShouldCacheFile(reqFile) {
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