Add js response to spaces/show
Add js response to spaces/show

cherry-pick 696ea275a5 with small adaptations.

mconftec/mconf-web-cedia,mconftec/mconf-web-cedia,mconftec/mconf-web-ufpe,lfzawacki/mconf-web,mconftec/mconf-web-ufpe,becueb/MconfWeb,amreis/mconf-web,amreis/mconf-web,mconftec/mconf-web-uergs,becueb/MconfWeb,fbottin/mconf-web,mconftec/mconf-web-santacasa,mconftec/mconf-web-mytruecloud,fbottin/mconf-web,mconftec/mconf-web-uergs,mconftec/mconf-web-uergs,amreis/mconf-web,mconftec/mconf-web-mytruecloud,mconftec/mconf-web-uergs,mconf-ufrgs/mconf-web,mconf/mconf-web,lfzawacki/mconf-web,mconftec/mconf-web-mytruecloud,mconf-ufrgs/mconf-web,mconftec/mconf-web-ufpe,mconf-rnp/mconf-web,mconftec/mconf-web-mytruecloud,mconf-rnp/mconf-web,mconftec/mconf-web-ufpe,akratech/Akraconference,lfzawacki/mconf-web,akratech/Akraconference,mconf-rnp/mconf-web,fbottin/mconf-web,akratech/Akraconference,akratech/Akraconference,mconf-rnp/mconf-web,mconftec/mconf-web-santacasa,lfzawacki/mconf-web,becueb/MconfWeb,mconf-ufrgs/mconf-web,mconftec/mconf-web-santacasa,amreis/mconf-web,mconf/mconf-web,fbottin/mconf-web,mconf/mconf-web,becueb/MconfWeb,mconf-ufrgs/mconf-web,mconftec/mconf-web-santacasa,mconftec/mconf-web-cedia,mconf/mconf-web