Problem Description:
problem: the SRC picture in img tag failed to load, and a fragment icon will appear in the original picture position, which is very unpleasant. How to be more beautiful
Cause analysis:
because the reverse display resource cannot be found or the path does not exist, it will be processed according to the IMG default processing method
Solution:
1. Find a default picture to replace
2. Trigger with onerror event
3. The oneror event is triggered repeatedly
<img src="url" onerror= "this.οnerrοr='';this.src='static/images/nop.svg'">
Can be solved
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