苹果正考虑对iPhone Duo的Safari浏览器做出调整，让网页能够占用更多外屏显示区域，不过苹果尚未敲定最终方案。
难题在于，既要允许网页填充到Safari侧边控件下方，又不能让页面内容被遮挡而无法访问。在10月23日周五WebKit官方博客文章中，苹果工程师Jen Simmons表示，现有网页配置可以实现该效果，但苹果调研发现大量网站无法正常兼容该设置。
这项配置为viewport-fit=“cover”，能够让网页延伸至原本预留的控件区域。但网页开发者必须在核心内容四周预留足够安全边距，避免内容被界面遮挡。Simmons称，绝大多数网站没有在所有边缘做好这类适配处理。
苹果正在探索另一套方案，力求给开发者更大控制权，同时降低内容被遮挡的风险。例如，网页头部背景可以铺满整个屏幕，而导航链接依然保留在无遮挡的安全区域内。
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