Currently the only way to SSO is by going to your website and typing in your full email address if you have Google as your IDP. Once you type in your email address it will sign you in and is usually fine till you close Chrome and reopen it the next day and then you need to type in your email address all over again. This is not true SSO and is especially difficult for our school since we deal with dyslexic kids that find it difficult to type and enter their email address correctly