Hi Diana,
> Hello,
>
> I have two hosts, one has haproxy 1.4.22 installed and the other has
> haproxy 1.5.14 installed.
> The following rewrite config works as expected in 1.5.14, but not in v1.4.22:
You probably want to check whether both 1.4.22 and 1.5.14 executables
have been build with PCRE.
Compare "haproxy -vv" output for this.
I think maybe the 1.4.22 has been compiled without PCRE. What then
happens is that haproxy falls back to the libc's regex engine, which may
not support the syntax you are using.
Regards,
Lukas
