Canvas app with gallery of image controls. Each image control is tied to a URL of a .PNG file or .JPG file. Sometimes images do not display in the gallery and browser dev tools reveal a call to a Graph URL https://graph.microsoft.com/v1.0/me/photo/$value
which returns a 404 not found. Details on that error show:
{
"error": {
"code": "InvalidAuthenticationToken",
"message": "Access token is empty.",
"innerError": {
"date": "2020-11-06T13:47:28",
"request-id": GUID,
"client-request-id": GUID
}
}
}
There is a known problem with token handling in Microsoft Graph. See https://docs.microsoft.com/en-us/graph/known-issues
Is the problem with missing images in PowerApps a manifestation of the same underlying token handling problem in Microsoft Graph ?
