Certificate generation failing because of illegal chars in Course name / Users name

[rhwarrier]

Certificate generation was seen to fail because of bad characters in the users name. The back end addresses this by dropping such chars from the users name when the certificate is being generated.
Ideally, the front end should restrict the user from entering such chars into the name, as it may lead to an inconsistency between the names on the profile vs. what is on the certificate - if not done.
Is there a way to ensure both the BBs (Ed and Lern) work off the same set of configurable chars so that there is no inconsistency/ the list need not be duplicated?
@luckynvdu @sharathkashyap reshmi-nair @maheshkumargangula