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fix: improve proxy for images without content-type #2740

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Merged
ghostdevv merged 2 commits into from
May 31, 2026
+10 −3
Merged

fix: improve proxy for images without content-type #2740

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cf9bd5b
fix: improve proxy for images without content-type
alexdln May 13, 2026
7f457fd
chore: apply suggestions
alexdln May 29, 2026
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13 changes: 10 additions & 3 deletions 13 server/api/registry/image-proxy/index.get.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -154,10 +154,17 @@ export default defineEventHandler(async event => {
})
}

const contentType = response.headers.get('content-type') || 'application/octet-stream'

const rawContentType = response.headers.get('content-type') || 'application/octet-stream'
const contentType = rawContentType.split(';', 1)[0]?.trim().toLowerCase()

const imagePathname = new URL(url).pathname.toLowerCase()
// Since some services don't specify the content-type, leaving it up to the user, we additionally check the extension.
// This doesn't compromise security, as both the extension and the content-type allow the user to forge the value.
const isImageLike =
contentType === 'application/octet-stream' &&
['.png', '.jpg', '.jpeg', '.gif'].some(ext => imagePathname.endsWith(ext))
// Allow raster/vector image content types (we don't inject external content into DOM, so SVG is allowed too)
if (!contentType.startsWith('image/')) {
if (!contentType?.startsWith('image/') && !isImageLike) {
await response.body?.cancel()
throw createError({
statusCode: 400,
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