An arcgis server in our dmz works just fine when we come in through our intranet. However, the arcgiscache does not get anything written to it from tiledmapservices when our internet users try to use that some javascript api web page. We just get a 'out of memory on line 8' error. I thought it may be permissions.... but now I am wondering if this is a proxy issue. How would I test if it is a proxy issue?