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Why should iframes be used as little as possible on the front end? -PHP Chinese website Q&A-Why should iframe be used as little as possible on the front end? -PHP Chinese website Q&A
Please watch and learn.
首先iframe算是一个过时的技术，已经被新工具取代。
其次，iframe是(几乎)不能访问外部数据的，js的作用域也会很奇怪。