Reverse proxy like behaviour redirection while preserving URL

Hi,
Is there a way to be able to have redirection being done on a subfolder of a domain to another different domain while keeping the “masked” URL path? (Reverse proxy like behaviour):

request URL:
https://aaa.com/otherstuff

display contents of :
https://bbb.org/therealotherstuff
while preserving the original request URL of https://aaa.com/otherstuff on the visitor’s browser.

thanks!