bool ScriptElement::requestScript(const String& sourceUrl)
{
Ref<Document> originalDocument(m_element->document());
if (!m_element->dispatchBeforeLoadEvent(sourceUrl))
return false;
if (!m_element->inDocument() || &m_element->document() != &originalDocument.get())
return false;
if (!m_element->document().contentSecurityPolicy()->allowScriptNonce(m_element->fastGetAttribute(HTMLNames::nonceAttr), m_element->document().url(), m_startLineNumber, m_element->document().completeURL(sourceUrl)))
return false;
ASSERT(!m_cachedScript);
if (!stripLeadingAndTrailingHTMLSpaces(sourceUrl).isEmpty()) {
CachedResourceRequest request(ResourceRequest(m_element->document().completeURL(sourceUrl)));
String crossOriginMode = m_element->fastGetAttribute(HTMLNames::crossoriginAttr);
if (!crossOriginMode.isNull()) {
m_requestUsesAccessControl = true;
StoredCredentials allowCredentials = equalIgnoringCase(crossOriginMode, "use-credentials") ? AllowStoredCredentials : DoNotAllowStoredCredentials;
updateRequestForAccessControl(request.mutableResourceRequest(), m_element->document().securityOrigin(), allowCredentials);
}
request.setCharset(scriptCharset());
request.setInitiator(element());
m_cachedScript = m_element->document().cachedResourceLoader()->requestScript(request);
m_isExternalScript = true;
}
if (m_cachedScript) {
return true;
}
dispatchErrorEvent();
return false;
}
bool ScriptElement::requestClassicScript(const String& sourceURL)
{
Ref<Document> originalDocument(m_element.document());
if (!m_element.dispatchBeforeLoadEvent(sourceURL))
return false;
bool didEventListenerDisconnectThisElement = !m_element.inDocument() || &m_element.document() != originalDocument.ptr();
if (didEventListenerDisconnectThisElement)
return false;
ASSERT(!m_loadableScript);
if (!stripLeadingAndTrailingHTMLSpaces(sourceURL).isEmpty()) {
auto request = requestScriptWithCache(m_element.document().completeURL(sourceURL), m_element.attributeWithoutSynchronization(HTMLNames::nonceAttr));
if (request) {
m_loadableScript = LoadableClassicScript::create(WTFMove(request));
m_isExternalScript = true;
}
}
if (m_loadableScript)
return true;
callOnMainThread([this, element = Ref<Element>(m_element)] {
dispatchErrorEvent();
});
return false;
}
