document. The problem of missing parameters of referer is solved

because Chrome85+ Revision of version policy , Different origin Jump between document.referer No more parameters , Only the host name , such as http://www.baidu.com?s=1 You can't get s=1 Only the protocol header and domain name

solve :

1. Both the jump party and its own website must be history Pattern
2. Jump to our website referer Carry policy degradation

<meta content="no-referrer-when-downgrade" name="referrer">

perhaps

<meta content="always" name="referrer">

Only in this way can we make referer Portability parameter

But this is to be added to the website of the source page Therefore, it is uncontrollable for our developers We are very passive Generally, we still take url Of query It's safer to carry parameters