Clear cache and cookies
The Prospect.io Chrome extension uses 3rd-party cookies in your Google Chrome browser. If you experience any issues with the extension (can't log in, the page is not updated, blank extension page, etc.), the first thing to do is to clear cache and cookies in your browser.
In the Google Chrome browser, at the top right, click More (three dots).
Click More tools > Clear browsing data.
At the top, choose a time range. To delete everything, select All time.
Next to "Cookies and other site data" and "Cached images and files," check the boxes.
Click Clear data.
Enable 3rd-party cookies in Google Chrome
3rd-party cookies may be blocked in your Google Chrome browser. Here are instructions on how to enable them:
In Google Chrome browser, at the top right, click More and then Settings.
At the bottom, click Show Advanced Settings.
In the Privacy and Security section, click Content Settings.
Uncheck the box next to Block third-party cookies and site data: