Make wget download page resources on a different domain

How do you use wget to download an entire site (domain A) when its resources are on another domain, (domain B)?
I've tried:
wget -r --level=inf -p -k -E --domains=domainA,domainB http://www.domainA

wget --recursive --level=inf --page-requisites --convert-links --html-extension \
     --span-hosts=domainA,domainB url-on-domainA

UPDATE: I remember the command above worked for me in the past (that was 2010 and I was using GNU Tools for Windows back then); however I had to change it to the following when I wanted to use it today:

wget --recursive --level=inf --page-requisites --convert-links \
     --adjust-extension --span-hosts --domains=domainA,domainB domainA

The shorthand for that would be: wget -rEDpkH -l inf domainA,domainB domainA

• -r = --recursive
• -l <depth> = --level=<depth>
• -E = --adjust-extension
• -p = --page-requisites
• -K = --backup-converted
• -k = --convert-links
• -D <domain-list> = --domains=<domain-list>
• -H = --span-hosts
• -np = --no-parent
• -U <agent-string> = --user-agent=<agent-string>

GNU Wget Manual: https://gnu.org/software/wget/manual/wget.html

wget --recursive --level=inf --page-requisites --convert-links --html-extension -rH -DdomainA,domainB domainA