I have 1password for mac and iOS synced via dropbox. On https://onlinebanking.tdbank.com/ autofill works great from my mac - either by double clicking on the item from within 1password or using the browser plugin autofill. However, neither method of autofill works from my iPad using the 1password browser. It leaves the username & password fields completely blank. It seems that the only way to login is through the manual copy-and-paste methods.
Additional information that may be helpful: 1password stored both a username and password field. 1password web form details has a user & username field (both the same as the regular username) and a pin (same as the password)