javascript - The built-in browser of WeChat ios has no effect on dynamically changing the src attribute of img with js

Question

The project is a WeChat page. I used Qiniu Cloud to upload pictures. After the picture was uploaded successfully, I changed the src attribute of img to do page echo. Android and PC were normal, but Apple was wrong. After the upload was successful, there was no page echo.

Answer 1

No picture is displayed, it is best to make sure that src is indeed set