Thumbnail is not loading when media is in Private mode

[kylehuynh205]

To replicate:

• Build isle-dc with development branch git clone https://github.com/digitalutsc/isle-dc
• Run make lite_dev

• After the build is completed:

  • Create a group called Private*

  • Do the ingest demo content: https://github.com/digitalutsc/islandora_lite_docs/wiki/8.-Ingesting-Content

  • OR

    • Add repostiory item as page content as model
    • Add child nodes under node
    • upload an image as media

  • Add Mirador block with config as screen shot below

  • 

  • Go to Access Control with Group tab, and set parent node and children nodes and their media to Private

• visit parent node or node/12(if doing the sample data ingest)
• Encounter the issue thumbnail is not loading due to error 500:

[kylehuynh205]

the 500 error is gone but it got 403 now.

[kylehuynh205]

To resolve the 403, need to Clear site data

[amym-li]

unable to reproduce the 403 error on isle-dc lite