port forward can't handle many connection?

[comicfans]

I'm using windterm 2.4.1 to map a remote server http service to a local port, for comparsion, I've also run ssh command line to do the same thing (but on different port), access this mapped http shows that windterm mapped one's has broken page (chrome debugger shows many failed loaded resources), but ssh mapped ones just worked as expected, no failed loading resources. I can't confirm this is due to browser create many connections , or if this is caused by other problems. anyway, I've found windterm port forward function not work as stable as ssh command