Firefox having trouble with subsetted fonts

[BrianS]

Just a note that Firefox 19 seems to have trouble displaying characteres from subsetted fonts when using the built-in PDF renderer (pdf.js). It's probably an issue in the rendering process, but I wanted to make a note of it so that we can keep an eye on it and address it if necessary (though this is a low priority).

[BrianS]

Related, FF also appears to have trouble displaying some other random characters. In FF21 the Helvetica and Times Roman core fonts do not display the non-breaking space character. The character exists in the PDF (copy and paste into a new document and it is copied) but it appears to have no width.