Office 365 Outlook Webmail: Is there a way to enable replying to digitally signed emails

Question

My company uses Office 365 and when I use the Outlook desktop app on my Windows machine, everything is great. However, in Webmail I cannot reply to or forward any emails that have a digital signature. Other users have the same problem. Out IT dept has not been helpful. Any way to enable replying/forwarding? It's a real PITA to have to create new emails and copy/paste contents from the signed ones every time! Thx!