The following batch script will set the registry keys to trust Splashtop RMM, and Teamviewer URL file handlers. This will allow chrome to open the automatic connections without prompting the user for permission.

@Echo Off
cd %systemroot%\system32
call :IsAdmin

Reg.exe add "HKLM\SOFTWARE\Policies\Google\Chrome\URLWhitelist" /v "99" /t REG_SZ /d "teamviewerapi://*" /f
Reg.exe add "HKLM\SOFTWARE\Policies\Google\Chrome\URLWhitelist" /v "100" /t REG_SZ /d "st-rmm://*" /f
Exit

:IsAdmin
Reg.exe query "HKU\S-1-5-19\Environment"
If Not %ERRORLEVEL% EQU 0 (
 Cls & Echo You must have administrator rights to continue ... 
 Pause & Exit
)
Cls
goto:eof