I have an aging PWA that uses App Cache for an offline mode. Today, when I browse with safari 14, my App Cache manifest never loads. In the Network tab of web inspector, it just sits there with the spinner spinning forever. If I request the url directly in a new tab, it loads no problem. CanIUse says safari still supports App Cache, and this was working at one time. An old Iphone 5s with Safari 10.3.3 still works fine. Does anyone have any tips?
This is my manifest declaration...
<html manifest="static.manifest">