Development environment production environment cookie write domain name problem?

here"s the thing: the website does single sign-on and cookie is written under the primary domain name.
suppose
website 1: www.aaa.qwer.com , website 2: www.bbb.qwer.com ,

api interfaces are uniformly used api.qwer.com

< hr >

production environment cookie writes qwer.com , no problem, for the local development environment (domain name is localhost):

which domain name does cookie write when js is written?

Javascript single-sign-on

Apr.01,2021

js continues to write to qwer.com, just needs to be configured in the host file

127.0.0.1 test.qwer.com

then the local development environment accesses

through test.qwer.com

Previous: Return str.replace (/\ s |\ xA0/g, ""); what does that mean?

Next: WeChat Mini Programs list click question

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e58ab3-454cc.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e58ab3-454cc.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?