Is your AccessPoint hosted by IIS? If yes, you have to add the MIME Types JSON and TTF in IIS.
1. Open IIS manager > Default Web Site > MIME Types
2. Look for .json and .ttf MIME types in the list. If such entries are not found, add the following entries:
- Extension: .json ; MIME type: application/json
- Extension: .ttf ; MIME type: application/x-font-truetype