1762227 - Investigate removing the strange about:blocked specialcase in ClickHandlerChild.jsm

Status: NEW

(Toolkit :: Safe Browsing, defect, P3)

Description

[:Gijs (he/him)]

In the early e10s days we added some strange click handling code specific to network error pages in bug 989875.

The handling for network error and blocked (safebrowsing) pages was then factored out in bug 1464552. As that happened, a bunch of the network error handling disappeared entirely from ClickHandlerChild.jsm. However, there is still a strange early return for about:blocked in there:

    // Handle click events from about pages
    if (event.button == 0) {
      if (ownerDoc.documentURI.startsWith("about:blocked")) {
        return;
      }
    }

It can probably be removed, but we should doublecheck.