Unpoly 3.9.1, 3.9.2 and 3.9.3 released

3.9.3

• Fix an error being thrown when a caching request is tracking an existing request to the same URL, and that existing request responds with an error status Show archive.org snapshot (issue #676).
• Fix a bug where a modal overlay could not be closed when a child popup would be open below the screen fold.
• Focus is no longer trapped in popup overlays. Focus remains trapped in all other overlay modes, but this can be disabled by setting up.layer.config.overlay.trapFocus = false.
• The dismiss button in overlays now has a hand cursor (by @apollo13).
• Fix a bug where links with relative URLs were sometimes revalidated Show archive.org snapshot against the wrong base URL (issue #669).

3.9.2

• Fix a bug where up:fragment:loaded Show archive.org snapshot listeners could not open a new layer by setting event.renderOptions.layer = "new".

3.9.1

• Fix a bug where any form[up-target] would receive a [role=button] attribute (issue #668).