Please consider checking out the 52.6.0gnome1 release from https://download.gnome.org/teams/releng/tarballs-needing-help/mozjs/ and having our spidermonkey:52 bumped to use that or an equivalent patchset (available from previously discussed github fork).
Upstream is using that for gnome 3.28 beta release, but also said it's good for 3.26 gjs as well (that previously 52.2.1gnome1 in there was for).
ping.. also could use an unmask, but would be safer with that newer 52.6.0gnome1. This is going to block gnome 3.26 in main tree soon (at least the unmasking part, old version in tree is theoretically fine, if unmasked).
Upstream is officially releasing 52.9, we are aiming for that version for unmask.
This is blocking security bug for polkit now
52.9 and :60 are in tree. Can we close this?