Bugs in Embed Cookie Authentication Labs Feature

[tiiya]

Hello,

I found 2 bugs (possibly related) when using SSO embed link in an iframe with Embed Cookieless Authentication Labs feature ON.

Everything works fine in regular Chrome browser.

However certain basic functionalities were lost in other browsers including Safari, Chrome Incognito, iOS Chrome (tested on iPad and iPhone).

Behavior in Safari:

• Images downloaded via /api/internal/core/3.1/content_thumbnail/ endpoint do NOT load correctly in text tiles
• Back/forward navigation button resulted in authorization error

Behavior in Chrome Incognito:

• Images downloaded via /api/internal/core/3.1/content_thumbnail/ endpoint do not load correctly in text tiles
  • Network response inspection showed authorization error
• Back/forward navigation button not responding to clicks

I filed a ticket via Looker Support, but was wondering if anyone has come across the same issue and found a work-around.

Thanks!