1312692 - Embedded videoplayer takes full minute to start playing

Status: RESOLVED DUPLICATE of bug 1311807

(Core :: DOM: Security, defect)

Description

[joris]

User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.143 Safari/537.36 OPR/40.0.2308.90

Steps to reproduce:

If you open the page on http://www.geenstijl.nl/mt/archieven/2016/10/geweldsmonopolie.html there's an embedded video (https://www.dumpert.nl/embed/6919207/91946477/ ).



Actual results:

If you click play, it takes over a minute to load until it starts playing.


Expected results:

Start playing immediately. (works in other browsers)

Comment 1

[Loic]

WFM with FF49 on Win 7, the start of the playback is almost instant.

Comment 2

[Loic]

Ah, I missed you're using FF51, not 49. Indeed, there is a regression.

Comment 3

[Alice0775 White]

Looks like Bug 1311807.

Could you test with browser.safebrowsing.blockedURIs.enabled=false?

(Note: Do not forget restore the preferences to true after you have tested)

Comment 4

[joris]

browser.safebrowsing.blockedURIs.enabled=false makes no difference, still takes over a minute to load.

Comment 5

[Alice0775 White]

You should restart browser to make it effective after setting the preferences.

Comment 6

[joris]

(In reply to Alice0775 White from comment #5)
> You should restart browser to make it effective after setting the
> preferences.

I was not aware of this, but unfortunately it does not make a difference.

Comment 7

[Ryan VanderMeulen [:RyanVM]]

Dupe of bug 1311807?

Comment 8

[Loic]

Yes.