1464098 - Print preview fonts doesn't match the actual fonts used on the webpage

Status: NEW

(Core :: Print Preview, defect)

Description

[laszlo.bialis]

Attachment: print preview vs actual page.PNG

[Version]:  62.0a1
[Build ID]: 20180523221148

[Affected platforms]: Ubuntu 16.04 x64 and x32

[Prerequisites]:
Set pref gfx.downloadable_fonts.otl_validation = false

[Steps]:
1. Launch Nightly 61.0a1 with a new profile
2. Open https://www.productiontype.com/fonts
3. Check the fonts visible on the page 
4. Select the Print Preview option and check the fonts again

[Expected result]:
The fonts used on the Print Preview screen should match the fonts used on the web page.

[Actual result]:
On the Print Preview screen all the fonts are the same but not the same as on the webpage (see attachment).

Comment 1

[Jonathan Kew [:jfkthame]]

I don't think this is related to variable fonts, it seems to be a general issue with the fonts at that site. (And I see the same kind of issue on macOS: it simply fails to use the expected fonts for the various samples.)

Is this a regression, or does Print Preview for this site fail similarly in older Firefox versions?

Comment 2

[laszlo.bialis]

Indeed it seems to be a general issue as Print Preview for this site fails on an older version of Nightly (61.0a1 Build ID:20180326220108) and on Chrome also.