Fix navigation when the page contains an iframe with an empty name #767
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Links/forms are currently being disabled if any iframe exists on the page with an empty name. This is unfortunately more common than you'd think due to browser extensions commonly injecting iframes carelessly into the page body.
The
targetattribute for both form and link elements returns a blank string when they are not set, so the existing checks since 7.2 were improperly catching any<iframe name>elements and disabling the submissions/navigations.