putting a dot(.) in the "subgraph" title calls an error in Mermaid module.

first.. i'm not goot English. Please, excuse me. X(

Summary

graph LR
   linkStyle default interpolate basis
   subgraph A.To.B
   AAA((aaa.aaa.aaa))
   AAA-- To --> BBB

   click AAA "https://www.google.com"
end

graph LR
   linkStyle default interpolate basis
   subgraph A.To.B
   AAA((aaa.aaa.aaa))
   AAA-- To --> BBB

   click AAA "https://www.google.com"
end

• This mermaid markdown code is show Can't load mermaid module: TypeError: Cannot read property 'x' of undefined message
• putting a dot(.) in the "subgraph" title calls an error.
• Not an error in other markdown editors ( https://mdp.tylingsoft.com/ or Typora)

Screenshot

What is the expected correct behavior?

• Draw like this
• mermaid is work. : aaa.aaa.aaa link click