ROARS imbedded iframe problem

Lucio Chiappetti · Unread post by **Lucio Chiappetti** » 2020-12-15, 19:36

This page https://www.roars.it/online/didattica-b ... -adeguata/ contains an IFRAME with a slide presentation. The advance arrow does not work (it used to for similar pages).
If one selects the iframe and does a "view only this frame" it works.

Any advice which could be communicated to the site authors is appreciated (I expect them to be responsive if they can)

Unread post by **Moonchild** » 2020-12-15, 19:47

Works for me.

New Tobin Paradigm · Unread post by **New Tobin Paradigm** » 2020-12-15, 19:55

Same on trunk build from yesterday.

coffeebreak · Unread post by **coffeebreak** » 2020-12-15, 20:14

Lucio Chiappetti wrote: ↑
2020-12-15, 19:36
The advance arrow does not work [...]
If one selects the iframe and does a "view only this frame" it works.

The navigation arrows work here if cookies are accepted from slideshare.net.
If your cookie settings are to accept first-party only, see if it works if you add an exception for that domain.

Slideshare.net is the iframe's domain, so when opened in its own tab it was first party.

Unread post by **Moonchild** » 2020-12-15, 20:18

Blocking third party cookies breaks many sites. People should know that by now.

Unread post by **vannilla** » 2020-12-15, 20:24

It's not necessarily because of cookies.
With eMatrix set to block all third party cookies I could still get the slideshow to work as intended, i.e. I can press the arrows to go back and forth.
It doesn't work if I block stuff from the associated CDN (as expected), so I'd check anything involving it.

Lucio Chiappetti · Unread post by **Lucio Chiappetti** » 2020-12-15, 21:05

Checked my setting (inherited from very old profile). Accept third party cookies = from visited.
Cookies show roars.it and slideshare.net

Since you find no strangeness in site, and I found in workaround I consider the issue closed. Thanks

coffeebreak · Unread post by **coffeebreak** » 2020-12-16, 16:46

Lucio Chiappetti wrote: ↑
2020-12-15, 21:05
Checked my setting [...]. Accept third party cookies = from visited.
Cookies show roars.it and slideshare.net

Slideshare.net appears to check only the cookie permission settings, but not whether cookies are actually set or sent back to them. And it doesn't seem to recognize/acknowledge "accept third-party from visited" as giving it permission.

The navigation arrows didn't work for me on roars.it when cookie permissions were set to "accept third-party from visited", even though I did visit slideshare.net before testing:

After visiting, then deleting the slideshare cookies set during the visit, new ones didn't get set as third-party on roars.it despite many page refreshes -> arrows didn't work.
After visiting and keeping the slideshare cookies set during the visit, the slide presentation arrows still didn't work on roars.it despite having the cookies.

But the arrows worked fine for me when cookie permissions were set either to "accept third-party always", or to accept just first-party but with an exception for slideshare.net.

The Error console showed these errors when third-party cookie permissions were set as either "accept from visited" or "never",
but were not present if either of the other two settings were used:

Code: Select all

Error: SecurityError: The operation is insecure.
Source File: https://public.slidesharecdn.com/v2/ss_foundation/combined_player_presentation.js?1801753e9b
Line: 1

Error: TypeError: this._init is not a function
Source File: https://public.slidesharecdn.com/v2/ss_foundation/combined_player_presentation.js?1801753e9b
Line: 1

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