I am trying to add a subdomain for my firebase app but it is not working. I've looked at Firebase site's Subdomain setup and this other SO post How do I make a custom subdomain on Firebase? but they didn't really help me.
I have a firebase app that is currently running: myawesomesite.com. I have another firebase app that I want to create the subdomain for awesome.myawesomesite.com.
I own the domain name myawesomesite.com via Namecheap. myawesomesite.com has been up for over a year.
Here is what it looks like on Firebase Hosting for the awesome app:
It has been showing "Needs setup" for the past 4 days.
Went I went through "Add custom domain", Firebase verified myawesomesite.com domain. Then I told Firebase that I wanted awesome.myawesomesite.com. Firebase then gave me two A Record values:
I also noticed that the A Record values for my subdomain request (awesome.myawesomesite.com), 123.456.7.890, are exactly the same A Record values for my domain myawesomesite.com.
This is what it looks like on my Namecheap dashboard:
I am pretty sure I did something wrong because Firebase give the same A Record values for both my domain (myawesomesite.com) and my subdomain (awesome.myawesomesite.com). I expected them to have different values. But Firebase gave me those values when I'm on my awesome project requesting for "Add custom domain". It has been 4 days and awesome.myawesomesite.com hasn't been active yet.
How can I correctly add a subdomain awesome.myawesomesite.com using namecheap and firebase hosting? Is this even possible on Firebase in 2021?