STABLE version -- 5.1.1130.129

[QZMTCH]

Yeah, i've compiled myself a newest one, but it shouldn't affect the page itself. Have you enabled #enable-javascript-harmony flag? Try to enable it, it should fix the issue.

yes the flag helped, but how stable is work with this flag? the flag was disabled
it's time to update the engine version anyway
https://www.centbrowser.net/en/showthrea...7#pid27277 there are more and more problems
extensions are not installed anymore, not because of the minimum version, but because of the manifest (although in theory they should have been installed) 
why he added both "scripts" and "service_worker" to the background is unclear, but the extension is installed on new engines, but not on old engines, you need to delete "scripts"