Wechat H5 payment (reporting cross domain issues)

H5 Payment development documents

Developing wechat H5[ payment ] When , The back end returns a file , When I open the front end, I will report a cross domain error , Later I found , Let the back end return the wechat payment jump link address , Then the front end directly location.href Turn jump
eg:

https://wx.tenpay.com/cgi-bin/mmpayweb-bin/checkmweb?prepay_id=prepay_id&package=package&redirect_url=redirect_url

redirect_url After the payment is successfully called , The address that needs to jump , This address needs to be urlencode Handle

And after the payment is successful , There may be some problems :

And In the quark browser, a file called ext:lp:home Blank page for , I haven't consulted or thought of a solution for the time being