No switch to HTTPS occured,So it not secure to send a password error on transaction launcher?

Hi Team,

i have created one url single single sign on, and added this url on transaction launcher link.if user clicks that link first time iam getting username password dialog box and errors No switch to HTTPS occured,So it not secure to send a password.

if we click again transaction launcher URL link then it is working fine.So could you please provide any help here.

Thanks in advance.

Thanks & regards

Kalpana