IE9浏览器是否存在CSS文件大小限制？

Hey folks, let's break down what we know about the supposed CSS file size limit in IE9.

First off, I've dug into this topic pretty thoroughly, and here's the core situation: there are tons of informal references online claiming IE9 has a 288KB CSS file size limit, but I haven't been able to find any official, documented confirmation from Microsoft about this restriction.

The community is split roughly evenly on whether this limit actually exists:

• Supporters of the limit's existence: Some developers have shared hands-on testing results and real-world case studies where IE9 failed to apply styles correctly once CSS files exceeded the 288KB mark. These observations come from technical blogs and practical troubleshooting write-ups focused on legacy browser compatibility.

• Opponents of the limit's existence: Other developers argue the 288KB limit is a myth. They've run their own tests with larger CSS files and found IE9 renders styles perfectly fine. These conclusions are often based on internal team testing notes and shared experience working with legacy enterprise projects.

If you're building for IE9 compatibility, my practical advice is to err on the side of caution. Even without official docs, splitting large CSS files into smaller chunks (using media queries, build tools like PostCSS, or manual splitting) can help avoid any potential rendering issues that might pop up in edge cases.

内容的提问来源于stack exchange，提问作者Arya