Because Google Maps have limited support to MSIE v 10 or higher.
Actually, it is caused by the SketchUp installers still setting the Browser Emulation attribute for “sketchup.exe” to v 9. (“Still” means since SketchUp stopped supporting XP installations which are limited to MSIE v 8.)
See this post:
But it has also been reported that setting emulation to v 11 will break the Dynamic Components webdialogs (because those dialogs are not yet using a <meta> tag to set compatibility mode and are using IE-specific non-W3C DOM functions. NOTE: This Dynamic Components bug has since been fixed.
So, manually setting it to v 10 (0x2711) allows both DC webdialogs to work, and we no longer get the Google browser version warning on the “Add Location” page (from Google Maps.)
It is not version specific. It is linked to any program named “sketchup.exe”.
Here is a zip archive with 4 .reg files for setting versions. (They likely require administrative priviliges to change the registry. Windows UAC may first prompt you for confirmation, or ask for an admin password if you are on a standard user account.)
Note: .reg files are by default associated with the regedit executable. When you double-click a .reg file, regedit will prompt you for confirmation to run the file and make changes to the registry. These files are plain text and can be viewed in any good code editor (of which plain-jane Notepad is not.)
DISCLAIMER: You take responsibility for changing the browser emulation setting. The Trimble SketchUp team is working on updates to Dynamic Components, etc. to try to work around the emulation issues. They may want it set to a specific setting when all the pieces fall into place later.