Unfortunately, the browsers have still very poor support for CSS-paged media.
So we typically solve such problems as you describe with pdf utils or with javascript.
Thanks! I got that kinda settled out and now its telling me that my css file isn't there, although I can see it so now I'm trying to get that sorted out.
This is kind of a frustrating error, I also suffered this error on my chrome. I fixed this issue by follow some steps from here https://droidtheory.com/pdf-not-opening-in-chrome-fixed/ You can also try them, they worked for me