Onerror usage in img tag_javascript skills

Today I saw a TX who wrote the following code in HTML
Hey! It's ok on FF but not on IE, because there are many factors that cause onerror in the B/S structure. Here, when an onerror occurs, re-address the current picture
However, this will cause network reasons or If the image cannot be loaded normally for other reasons, onerror will be called again. A browser based on Microsoft's core set will think that this is an infinite loop
and will report a stack overflow error.
Solution:
Use two

Copy the code The code is as follows: