Back/Forward navigation doesn't work with PDF viewer
Open page A, then open page B, then open a PDF file. Press Back and you go to page A (should be B), press Forward, you are on page B, and you cannot go back to the PDF.
Open page A, then open page B, then open a PDF file. Press Back and you go to page A (should be B), press Forward, you are on page B, and you cannot go back to the PDF.