The first phase of the development of my project has been completed, and I am working on a WeChat public account. At this time, my colleague suddenly said that the page on his iPhone was messed up. When I saw it, it was all double braces of Vue. He was on iOS 8.1 version, but the higher versions of Android and iOS are displayed normally. What is the reason for this? Is it a compatibility issue? But Youda said that it is compatible with ios7? Help! !