Caché, the women’s clothing chain known for its dresses, has been closing stores across the country after filing for Chapter 11 bankruptcy protection earlier this month. But Caché employees at Westfield Montgomery Mall say that location will remain open through prom season and beyond. “We are definitely not going to be one of the stores that’s closing,” one manager told us emphatically. Caché joins a growing list of clothing retailers that have filed for bankruptcy in recent months. Among them was the teen store Wet Seal, which closed its Montgomery Mall store over the holidays.