这是一个Firefox错误还是我搞砸了？如果我在真实设备（例如 Android）上使用 chrome 甚至 Firefox，没有问题，它似乎只影响 Firefox 的响应式设计模式。这是复制问题所需的完整代码：<html><head><meta charset="UTF-8"><meta name="viewport" id="viewport" content="width=device-width, height=device-height, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"/></head><body><script>var pageInPortraintMode;// Prevent keyboard from squeezing the entire UIaddEventListener("load", function() { pageInPortraintMode = window.innerHeight > window.innerWidth; document.getElementById("viewport").setAttribute("content", "width=" + window.innerWidth + ", height=" + window.innerHeight + ", initial-scale=1.0, maximum-scale=1.0, user-scalable=0");})// Listen to window resizes to detect orientation changeswindow.addEventListener("resize", windowSizeChanged);function windowSizeChanged() { alert(window.innerWidth + "x" + window.innerHeight); if (((pageInPortraintMode === true) && (window.innerHeight < window.innerWidth)) || ((pageInPortraintMode === false) && (window.innerHeight > window.innerWidth))) { pageInPortraintMode = window.innerHeight > window.innerWidth; document.getElementById("viewport").setAttribute("content", "width=" + window.innerWidth + ", height=" + window.innerHeight + ", initial-scale=1.0, maximum-scale=1.0, user-scalable=0"); }}</script><div style="width:100%; height:100%; background-color:#000; position:fixed; left:0; top:0"></div></body></html>要复制进入响应式设计模式 (Ctrl+Shift+M)，请加载 html，然后按“旋转视口”按钮。
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TA贡献1812条经验 获得超5个赞
看来这是一个可重现的 Firefox 错误 https://bugzilla.mozilla.org/show_bug.cgi?id=1650024
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