This is definitely still an issue - almost an immediate ramp to over 2GB ram used in Chrome and then i tried on IE and swiftly went over 1GB. In both cases, brings the whole system to a standstill.
windows 7
Chrome 65.0.3325.181 (Official Build) (64-bit)
IE Version 1.0.9600.18952
Hope this helps, but it's unusable for me at the moment.