Due to some legacy pathing, my site actually resides at:
But we have our server set up to return the /blog/index.php page when visitors reach
WP-SuperCache updates /blog whenever a new post is published, but the / version doesn't seem to update until the cache expires or if I manually clear the cache.
Any ideas? / and /blog should be identical at all times, but I don't want to do a 301 from / to /blog because of potential SEO penalties for doing that.