CRM internal header is containing period as below which is not following the HTTP header standard

"mscrm.returnnotifications"="true"

HTTP Headers defined by RFC2616, RFC2822, RFC7230 advise against the use of non-standard characters such as the period below:

Sec-Fetch-Site – Acceptable HTTP header delimiter usage ‘-‘.

accept – Acceptable HTTP header non-delimiter usage.

We should fix this one (maybe replace the period by hyphen for internal CRM header)