studied pdf.js
the cross-domain problem has not been solved. Later, it was found that all mainstream browsers can directly open pdf files and provide functions such as downloading / printing
so, is it necessary to use pdf.js or other pdf plug-ins in your project?
and after I pass the pdf file as a path to the iframe tag, the pdf file is displayed
html
js
find a solution!
whether it depends on your needs, it's hard to say without them.
as for the fact that iframe, hasn't been used for a long time, try specifying a fixed size.
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