When the Google Chrome cookie settings, 'cookies without SameSite must be secure' and 'SameSite by default cookies' are set to enabled (the upcoming default settings, postponed due to COVID-19), private apps which require an ArcGIS Online login embedded in public sites with a non-ArcGIS website domain prompt for authentication each time the public site is visited or reloaded in the same browser.
Last Published: June 18, 2020ArcGIS Online
Bug ID Number
June 17, 2020
October 4, 2021
Operating System Version
10.0 64 Bit
The bug has been fixed. See the Version Fixed and Additional Information, if applicable, for more information.