diff --git a/scripts/docker/cache/package.sh b/scripts/docker/cache/package.sh
index 3ce483d631..80bfc234af 100755
--- a/scripts/docker/cache/package.sh
+++ b/scripts/docker/cache/package.sh
@@ -138,6 +138,8 @@ ensure_proxy_repo() { ensure_repo "$1" proxy "$2" "$3"; }
 # that hit it.
 ensure_all_proxies() {
 	local storage='"storage":{"blobStoreName":"default","strictContentTypeValidation":true},"proxy":{"contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"negativeCache":{"enabled":true,"timeToLive":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"httpClient":{"blocked":false,"autoBlock":false}'
+	# Exception: raw content has no type contract; strict validation answers a GPG keybox (.kbx) with 404 "Content type could not be determined".
+	local raw_storage="${storage/'"strictContentTypeValidation":true'/'"strictContentTypeValidation":false'}"
 
 	ensure_proxy_repo apt apt-debian "$(printf '{"name":"apt-debian","online":true,%s,"proxy":{"remoteUrl":"http://deb.debian.org/debian","contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"apt":{"distribution":"bookworm","flat":false}}' "${storage}")"
 	ensure_proxy_repo apt apt-ubuntu "$(printf '{"name":"apt-ubuntu","online":true,%s,"proxy":{"remoteUrl":"'"${UBUNTU_PRIMARY}"'","contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"apt":{"distribution":"jammy","flat":false}}' "${storage}")"
@@ -150,14 +152,14 @@ ensure_all_proxies() {
 	ensure_proxy_repo pypi pypi-proxy "$(printf '{"name":"pypi-proxy","online":true,%s,"proxy":{"remoteUrl":"https://pypi.org/","contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'}}' "${storage}")"
 	ensure_proxy_repo npm npm-proxy "$(printf '{"name":"npm-proxy","online":true,%s,"proxy":{"remoteUrl":"https://registry.npmjs.org/","contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'}}' "${storage}")"
 	ensure_proxy_repo helm helm-bitnami "$(printf '{"name":"helm-bitnami","online":true,%s,"proxy":{"remoteUrl":"https://charts.bitnami.com/bitnami","contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'}}' "${storage}")"
-	ensure_proxy_repo raw raw-githubusercontent "$(printf '{"name":"raw-githubusercontent","online":true,%s,"proxy":{"remoteUrl":"https://raw.githubusercontent.com/","contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"raw":{"contentDisposition":"ATTACHMENT"}}' "${storage}")"
-	ensure_proxy_repo raw raw-codeload-github "$(printf '{"name":"raw-codeload-github","online":true,%s,"proxy":{"remoteUrl":"https://codeload.github.com/","contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"raw":{"contentDisposition":"ATTACHMENT"}}' "${storage}")"
+	ensure_proxy_repo raw raw-githubusercontent "$(printf '{"name":"raw-githubusercontent","online":true,%s,"proxy":{"remoteUrl":"https://raw.githubusercontent.com/","contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"raw":{"contentDisposition":"ATTACHMENT"}}' "${raw_storage}")"
+	ensure_proxy_repo raw raw-codeload-github "$(printf '{"name":"raw-codeload-github","online":true,%s,"proxy":{"remoteUrl":"https://codeload.github.com/","contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"raw":{"contentDisposition":"ATTACHMENT"}}' "${raw_storage}")"
 	ensure_proxy_repo rubygems gem-proxy "$(printf '{"name":"gem-proxy","online":true,%s,"proxy":{"remoteUrl":"https://rubygems.org/","contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'}}' "${storage}")"
 	ensure_proxy_repo go go-proxy "$(printf '{"name":"go-proxy","online":true,%s,"proxy":{"remoteUrl":"https://proxy.golang.org/","contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'}}' "${storage}")"
 	ensure_proxy_repo yum yum-rocky "$(printf '{"name":"yum-rocky","online":true,%s,"proxy":{"remoteUrl":"https://download.rockylinux.org/pub/rocky/","contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"yum":{"repodataDepth":5}}' "${storage}")"
 	ensure_proxy_repo yum yum-fedora "$(printf '{"name":"yum-fedora","online":true,%s,"proxy":{"remoteUrl":"https://download.fedoraproject.org/pub/fedora/linux/","contentMaxAge":'"${CACHE_CONTENT_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"yum":{"repodataDepth":5}}' "${storage}")"
-	ensure_proxy_repo raw raw-packagist "$(printf '{"name":"raw-packagist","online":true,%s,"proxy":{"remoteUrl":"https://repo.packagist.org/","contentMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"raw":{"contentDisposition":"ATTACHMENT"}}' "${storage}")" # nocheck: url
-	ensure_proxy_repo raw raw-alpine "$(printf '{"name":"raw-alpine","online":true,%s,"proxy":{"remoteUrl":"https://dl-cdn.alpinelinux.org/alpine/","contentMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"raw":{"contentDisposition":"ATTACHMENT"}}' "${storage}")"
+	ensure_proxy_repo raw raw-packagist "$(printf '{"name":"raw-packagist","online":true,%s,"proxy":{"remoteUrl":"https://repo.packagist.org/","contentMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"raw":{"contentDisposition":"ATTACHMENT"}}' "${raw_storage}")" # nocheck: url
+	ensure_proxy_repo raw raw-alpine "$(printf '{"name":"raw-alpine","online":true,%s,"proxy":{"remoteUrl":"https://dl-cdn.alpinelinux.org/alpine/","contentMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"',"metadataMaxAge":'"${CACHE_METADATA_MAX_AGE_MIN}"'},"raw":{"contentDisposition":"ATTACHMENT"}}' "${raw_storage}")"
 }
 
 ensure_eula_accepted() {