The <a data-l10n-name="rel">rel</a> attribute with value <code>"preload"</code> on a <a data-l10n-name="link">&lt;link&gt;</a> element is intended to help provide performance gains by letting you download resources earlier in the page lifecycle, ensuring that they’re available earlier and are less likely to block page rendering. Read <a data-l10n-name="readmore">“Preloading content with <code>rel="preload"</code>”</a> or see <a data-l10n-name="bugzilla">bug 1583604</a> for more details.
<a data-l10n-name="link">&lt;link&gt;</a> 元素的 <a data-l10n-name="rel">rel</a> 属性值<code>“preload”</code>，使得资源能够在页面生命周期中更早的进行加载并可用，以此提高性能，且更不易阻塞页面的渲染。欲详细了解，请参阅<a data-l10n-name="readmore">“Preloading content with <code>rel="preload"</code>”</a> 或 <a data-l10n-name="bugzilla">Bug 1583604</a>。