void Document::updateLayoutIgnorePendingStylesheets(Document::RunPostLayoutTasks runPostLayoutTasks)
{
    StyleEngine::IgnoringPendingStylesheet ignoring(styleEngine());

    if (styleEngine().hasPendingSheets()) {
        HTMLElement* bodyElement = body();
        if (bodyElement && !bodyElement->layoutObject() && m_pendingSheetLayout == NoLayoutWithPendingSheets) {
            m_pendingSheetLayout = DidLayoutWithPendingSheets;
            styleResolverChanged();
        } else if (m_hasNodesWithPlaceholderStyle) {
            updateLayoutTree(Force);
        }
    }

    updateLayout();

    if (runPostLayoutTasks == RunPostLayoutTasksSynchronously && view())
        view()->flushAnyPendingPostLayoutTasks();
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.