Ucamco upgrades the Reference Gerber Viewer

Ucamco released version 1.5 of its online Reference Gerber Viewer. 
It brings the following new features:

Multilayer support.
Multiple files can be visualized simultaneously
(important when viewing files in PCB fabrication data)
Improved security
HTTPS protocol
Cleanup of inactive server sessions
Automatic logout after inactivity
Uploaded Gerber files are deleted after session termination
Support for the new block nesting commands (AB, LM, LR, LS)
Miscellaneous
Support for all file extensions.
Error message when the uploaded files contain non-Gerber files
Improved stability
Some bug fixes
The Reference Gerber Viewer is available at https://gerber.ucamco.com