Comment 2 for bug 529252

This has caused me a headache for several days. Also opened an issue at d.o., see http://drupal.org/node/830094

Note that has_js is there and it is set to "1" (see in the above issue) but it is not taken into account and Batch API sets itself to "op=do_nojs"

I trust Pressflow has good reasons to disable AJAX in Batch API, but it would be good to be able to have a switch for that, either in settings.php or in the interface, because without JS it is virtually impossible to rebuild perms or sitemaps etc. on larger sites.