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-rw-r--r--dom/script/ScriptLoader.cpp12
1 files changed, 9 insertions, 3 deletions
diff --git a/dom/script/ScriptLoader.cpp b/dom/script/ScriptLoader.cpp
index 58f0c0bbe..9216be835 100644
--- a/dom/script/ScriptLoader.cpp
+++ b/dom/script/ScriptLoader.cpp
@@ -1050,15 +1050,17 @@ ScriptLoader::StartLoad(ScriptLoadRequest *aRequest, const nsAString &aType,
NS_ENSURE_SUCCESS(rv, rv);
nsIScriptElement *script = aRequest->mElement;
+ bool async = script ? script->GetScriptAsync() : aRequest->mPreloadAsAsync;
+ bool defer = script ? script->GetScriptDeferred() : aRequest->mPreloadAsDefer;
+
nsCOMPtr<nsIClassOfService> cos(do_QueryInterface(channel));
if (cos) {
- if (aScriptFromHead &&
- !(script && (script->GetScriptAsync() || script->GetScriptDeferred()))) {
+ if (aScriptFromHead && !async && !defer) {
// synchronous head scripts block lading of most other non js/css
// content such as images
cos->AddClassFlags(nsIClassOfService::Leader);
- } else if (!(script && script->GetScriptDeferred())) {
+ } else if (!defer) {
// other scripts are neither blocked nor prioritized unless marked deferred
cos->AddClassFlags(nsIClassOfService::Unblocked);
}
@@ -2571,6 +2573,8 @@ ScriptLoader::PreloadURI(nsIURI *aURI, const nsAString &aCharset,
const nsAString &aCrossOrigin,
const nsAString& aIntegrity,
bool aScriptFromHead,
+ bool aAsync,
+ bool aDefer,
const mozilla::net::ReferrerPolicy aReferrerPolicy)
{
NS_ENSURE_TRUE_VOID(mDocument);
@@ -2601,6 +2605,8 @@ ScriptLoader::PreloadURI(nsIURI *aURI, const nsAString &aCharset,
Element::StringToCORSMode(aCrossOrigin), sriMetadata,
aReferrerPolicy);
request->mIsInline = false;
+ request->mPreloadAsAsync = aAsync;
+ request->mPreloadAsDefer = aDefer;
nsresult rv = StartLoad(request, aType, aScriptFromHead);
if (NS_FAILED(rv)) {