inline noto-subset font load failed in Firefox

[indirectlylit]

Observed behavior

In Firefox on Mac, only the full and common fonts appear to be loading. The base64-encoded css-inlined subset font is not.

Probably related to khaledhosny/ots#52

Errors and logs

Normal weight:

downloadable font: glyf: zero-length table (font-family: "noto-subset" style:normal weight:400 stretch:100 src index:0) source: data:application/x-font-woff;charset=utf-8;base64,AAEAAAARAQAABAAQR0RFRgBjAAQAABRAAAAAJkdQT1NEdkx1AAAUaAAAACBHU1VCkxWCFgAAFIgAAA … FAABAAAAAAABAAAACgAcAB4AAURGTFQACAAEAAAAAP//AAAAAAAAAAEAAAAKADIANAAEREZMVAAaY3lybAAkZ3JlawAkbGF0bgAkAAQAAAAA//8AAAAAAAAAAAAAAAA=
downloadable font: rejected by sanitizer (font-family: "noto-subset" style:normal weight:400 stretch:100 src index:0) source: data:application/x-font-woff;charset=utf-8;base64,AAEAAAARAQAABAAQR0RFRgBjAAQAABRAAAAAJkdQT1NEdkx1AAAUaAAAACBHU1VCkxWCFgAAFIgAAA … FAABAAAAAAABAAAACgAcAB4AAURGTFQACAAEAAAAAP//AAAAAAAAAAEAAAAKADIANAAEREZMVAAaY3lybAAkZ3JlawAkbGF0bgAkAAQAAAAA//8AAAAAAAAAAAAAAAA=
downloadable font: font load failed (font-family: "noto-subset" style:normal weight:400 stretch:100 src index:0) source: data:application/x-font-woff;charset=utf-8;base64,AAEAAAARAQAABAAQR0RFRgBjAAQAABRAAAAAJkdQT1NEdkx1AAAUaAAAACBHU1VCkxWCFgAAFIgAAA … FAABAAAAAAABAAAACgAcAB4AAURGTFQACAAEAAAAAP//AAAAAAAAAAEAAAAKADIANAAEREZMVAAaY3lybAAkZ3JlawAkbGF0bgAkAAQAAAAA//8AAAAAAAAAAAAAAAA=

Bold weight:

downloadable font: glyf: zero-length table (font-family: "noto-subset" style:normal weight:700 stretch:100 src index:0) source: data:application/x-font-woff;charset=utf-8;base64,AAEAAAARAQAABAAQR0RFRgBjAAQAABQoAAAAJkdQT1NEdkx1AAAUUAAAACBHU1VCkxWCFgAAFHAAAA … FAABAAAAAAABAAAACgAcAB4AAURGTFQACAAEAAAAAP//AAAAAAAAAAEAAAAKADIANAAEREZMVAAaY3lybAAkZ3JlawAkbGF0bgAkAAQAAAAA//8AAAAAAAAAAAAAAAA=
downloadable font: rejected by sanitizer (font-family: "noto-subset" style:normal weight:700 stretch:100 src index:0) source: data:application/x-font-woff;charset=utf-8;base64,AAEAAAARAQAABAAQR0RFRgBjAAQAABQoAAAAJkdQT1NEdkx1AAAUUAAAACBHU1VCkxWCFgAAFHAAAA … FAABAAAAAAABAAAACgAcAB4AAURGTFQACAAEAAAAAP//AAAAAAAAAAEAAAAKADIANAAEREZMVAAaY3lybAAkZ3JlawAkbGF0bgAkAAQAAAAA//8AAAAAAAAAAAAAAAA=
downloadable font: font load failed (font-family: "noto-subset" style:normal weight:700 stretch:100 src index:0) source: data:application/x-font-woff;charset=utf-8;base64,AAEAAAARAQAABAAQR0RFRgBjAAQAABQoAAAAJkdQT1NEdkx1AAAUUAAAACBHU1VCkxWCFgAAFHAAAA … FAABAAAAAAABAAAACgAcAB4AAURGTFQACAAEAAAAAP//AAAAAAAAAAEAAAAKADIANAAEREZMVAAaY3lybAAkZ3JlawAkbGF0bgAkAAQAAAAA//8AAAAAAAAAAAAAAAA=

Expected behavior

The inline font is intended to prevent a flash of unstyled text and improve render performance.

User-facing consequences

Possibly slower loads or shifting typography

Steps to reproduce

Load Kolibri on Firefox on Mac

Context

latest develop