Https iframe nested http,http data cannot be loaded

< iframe src= " http://dwlm.12371.cn/daohang/.; width= "100%" height= "64" scrolling= "no" class= "iframe-top" frameborder= "0" > < / iframe >

Mar.07,2021

child pages should also use https, otherwise it is a cross-domain request


< meta http-equiv= "Content-Security-Policy" content= "upgrade-insecure-requests" >

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