Issue #2258 - Part 2: Move XCTO:nosniff check into sniffers.

This fixes a regression for the JSON viewer from part 1 as it relies on
sniffing to prettify (and should carve out the exception even if `nosniff`
headers are sent).
No real functional changes otherwise. Just catering to a corner case.
This commit is contained in:
Moonchild 2025-08-12 17:01:36 +02:00 • committed by roytam1
commit cca20ae131
5 changed files with 17 additions and 14 deletions

View file

@ -317,9 +317,11 @@ nsUnknownDecoder::GetMIMETypeFromContent(nsIRequest* aRequest,
{
// Note: This is only used by sniffer, therefore we do not need to lock anything here.
nsCOMPtr<nsIChannel> channel(do_QueryInterface(aRequest));
nsCOMPtr<nsILoadInfo> loadInfo = channel->GetLoadInfo();
if (loadInfo->GetSkipContentSniffing()) {
return NS_OK;
if (channel) {
nsCOMPtr<nsILoadInfo> loadInfo = channel->GetLoadInfo();
if (loadInfo->GetSkipContentSniffing()) {
return NS_ERROR_NOT_AVAILABLE;
}
}
mBuffer = const_cast<char*>(reinterpret_cast<const char*>(aData));
mBufferLen = aLength;