About 2 1/2 months ago, we started seeing crawl errors across all of our sites in Google Webmaster Tools. The phantom 'pages' all followed the same pattern:
flmanageCM.fsrollup_mlc="/2621551/billybob/" + location.hostname + "/" + flmanageCM.fsrollup_default_pc;
In this faux example, the resulting error page would be mysite.com/2621551/billybob/. Here's where it gets weird: after about a month, all of these crawl errors started disappearing from Webmaster Tools - we thought we were off the hook. This week as the sites are being crawled, they're all coming back. So:
Thanks for any thoughts or observations!