Client Cache deactivated after plugin activation

[gessler]

Well, I guess the purpose is to have the possibility to control caching if needed.
In my case that contact form session caused a no-cache at all pages, which I don´t want to, my site ( www.casademaria.com.br) is quite heavy, some large photos.... caching is a must I think, and google site speed also complains if caching switched of.
Nice would be to have the possibility to activate certain plugins just for the desired page where you need/want the plugin.