Give it a go Anna and let us know it does sound feasible that it may contain some of the gloop.
My spider is 300 Microns so is reasonably fine but I would think the re-circ pump will have to be used to circulate all the wort through it to strain it out maybe after the boil for say 10 mins.
Experimentation is always the way to go it either works or not
EDIT
I have just thought thats what I do when using a whirlpool I put the hops in the spider then pump into it to agitate the hops for better utilisation so if it works the gloop will be filtered with the spider and the hops, I do get clean wort so maybe it helps.
Ps do not put the pump on full as it will eventually fill the spider as the flow is more than the rinsing out and fills the spider up and will overflow which defeats the object so a balanced pump setting is needed
2nd EDIT I wonder if it sticks to the hops in the spider?