Gentoo's Bugzilla –
Attachment 665951 Details for
Bug 749417dev-qt/qtwebengine-5.15.1 - SyntaxError: Unexpected token = at exports.runInThisContext (vm.js:54:16) at Module._compile (module.js:375:25) at Object.Module._extensions..js (module.js:406:10) at Module.load (module.js:345:32) at Function.Module._load[...]