pub.client:http issue

Hello,

IS 9.7

when I issue a http request to a specific https host from one of my IS, I get below exception.

Could not run ‘http’
com.wm.app.b2b.server.ServiceException: java.lang.StringIndexOutOfBoundsException: String index out of range: -4

But for all other https host, I connects and I get status 200 OK.

what may be the reason?

Did you try to run through the same http request using one of the REST Client and see if that works or not?