Equals Sign Renders Without Both Lines

[ghost]

Open this page and have automatic zoom applied; then notice the equals symbols render without the bottom line.

When zoom is automatic (incorrect): When zoom is 140% (correct):

Here is the a TeX file that generated the PDF.

Misc attributes: v22.0.1471.70, 1920 x 1080, Windows 8.1 Pro Update

Update: I notice that in the second image I provide above, the underline for the subset symbol does not render.

[Rob--W]

Possibly a duplicate of: https://github.com/mozilla/pdf.js/issues/4657

[ghost]

@Rob--W Oddly, Firefox (31 beta, haven't tried stable) renders the equals sign correctly with automatic zoom. Moreover, another PDF renders the less than or equal to sign correctly under automatic zoom with Opera. Meanwhile, it should be Yet you're plausibly right about it being a duplicate.

[SamyCookie]

Pdf files are not accessible anymore, I reupload them here: m131-92211.pdf and m131-112911.pdf

I cannot reproduce issues anymore with PDF.js 2.0.625 and Firefox 62 on Win 10 64 bits.

[bratell-at-opera]

Thanks for checking. I hope nobody uses this old version of pdf.js anymore. We switched to a native code implementation with pdfium for Opera when that became good enough.