问题
This is the listing of our Google Apps Marketplace app. The button has also disappeared from every page we've put the integration on.
When I'm looking at the console log in the browser on pages where the button should be appearing, I see that calls to this url: https://apis.google.com/additnow/additnow.html?... result in this error:
Forbidden
Error 403
This is the link to our Marketplace listing: https://chrome.google.com/webstore/detail/email-signature-marketing/iopfifjpbcpfjpfaphafndgmjlmboejd
It's impossible to install the product at the moment, what might be the issue?
回答1:
In the marketplace SDK settings, uncheck the "Enable individual installs" option. The option doesn't do anything at the moment and shouldn't be enabled.
Update: Preferred fix (assuming your app can/will support individual user installs) is to do as MeLight says in the comment and create a new client ID with the "web application" type.
来源：https://stackoverflow.com/questions/25472084/integrate-with-google-button-disappeared