Issue Summary

• If any json files with brackets in its content, " {" and "}

  " is added into a page in Confluence, the card file preview never completely loads and returns a spinning icon.

Steps to Reproduce

1. Upload a json file, like the one below into a page in Confluence.
   • example_1.json
2. Publish the page, and notice that the attachment will not have any preview.
   • Only returning a default file icon.
   • 
3. Refresh the page, and the preview will attempt to load forever with a spinning icon.
   • 

Expected Results

• The preview should be load,
• Or if the file content cannot be previewed, it should show the default icon.

Actual Results

• The preview continuously attempts to load with a spinning icon.

Workaround

• Currently there is no known workaround for this behavior. A workaround will be added here when available

Note

1. This issue is only for the "file preview" when in the "card" display.
2. Clicking on the attachment will still load/display the full screen preview without any issues.