shouldn"t the src address of a general web page end with .jpg, .png and so on?
I just looked at the shell net, why I found this type of picture storage mode:
https://image1.ljcdn.com/xf-resblock/d104f057-8b9d-44d2-a370-327766c925fc.jpg!m_fill,w_280,h_210,lg_north_west,lx_0,ly_0,l_fbk,f_jpg,ls_50
.jpg?
take a look at the URL at the front end
url has no mandatory association with content. It is OK for a.js to return a picture. There is a server between no url and response. The server can return anything.
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