As you are reading this, it is likely that attempted to open a PDF document from the eAIP Navigation commands area, but your browser has prevented you from viewing the content
Over the years, web browsers have been developed offering new features and additional security. Once such security feature is “Cross Origin Request Sharing” [CORS] which allows [or denies!] access to shared resources from a different network origin. This will typically allow for files to be opened from a different network source, but only if specific conditions are met.
In this case, your browser has denied access to the PDF document as CORS prevented access
For further detail, review the eAIP Side Letter for additional information.
Access the folder containing the PDF files directly: ../pdf/