Clicking http url from safe site twice, the page goes two steps back

[safesurfer]

When I click http url once, in safe://safenetworkprimer it shows the error popup, but if I click the same link twice, the page goes two steps back, if I click thrice, goes three steps back, and so on.

STR:

1. Open browser and a new tab, access some safe site which has http links, eg: safe://safenetworkprimer
2. click some chapter, and click http link. It shows error popup saying the url is blocked
3. try click the same link twice, it goes two steps back, which is the home page safe://safenetworkprimer
4. try click the same link thrice, it goes three steps back, which is about:blank and so on.

[joshuef]

Ah, the actual issue here seems to be clicking the same link twice throws an error for a safe: link, which it should not (and is then sending us back in the history)

[safesurfer]

QA verified