SYMPTOM:
Users may find that exports to PDF result in a blank page in Strategy Web 9.x.
However, after clicking refresh, the PDF file will download and display.
CAUSE:
This issue is caused by HTTP Compression enabled on IIS. HTTP Compression checks and compresses files of a certain extension, such as html and asp, allowing for faster page serving to client machines.
However, for a PDF export the compressed file is not decompressed automatically when sent to the browser, thus a user has to refresh the page in order for the file to display.
ACTION:
Disable HTTP Compression. Refer to:
https://www.iis.net/configreference/system.webserver/httpcompression
