1224315 - YouTube "theater mode" button changes state but doesn't resize the video, if you click it immediately when the video appears

Status: RESOLVED FIXED

(Web Compatibility :: Site Reports, defect)

Description

[danny.parker9]

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0
Build ID: 20151029151421

Steps to reproduce:

So play a Youtube video like normal.
When you go to Maximise to video (Half Screen) 

To fix this issue you have to re-load the web-page and do it again and then it will maximise as it should.


Actual results:

The box around the video stayed the same size


Expected results:

The box should open up so that the video is half screen size.

Comment 1

[Ralph Giles (:rillian)]

Seems like a layout (or Youtube) issue. Passing on for further triage.

Comment 2

[Mike Taylor [:miketaylr]]

Hi Danny, does this still reproduce for you? If so, can you upload a screenshot? Thanks!

Comment 3

[danny.parker9]

Attachment: Screenshot as requested.

Comment 4

[danny.parker9]

(In reply to Mike Taylor [:miketaylr] from comment #2)
> Hi Danny, does this still reproduce for you? If so, can you upload a
> screenshot? Thanks!

I have attached the screenshot as you requested. 
Ignore the video no reflection on me just what I found, as you can see I have requested the video
half screen but even though I have clicked the button nothing has happened.

Comment 5

[Daniel Holbert [:dholbert]]

Danny, are you using...
 - the "fullscreen" button (rightmost button at bottom of the video)
...or:
 - the "Theater mode" button (2nd-to-right button at bottom of the video)

I'm not clear from comment 0 which one, because you mention both "maximise" (which sounds like fullscreen) and "half screen" (which I think sounds like Theater mode but I'm not sure)

Comment 6

[danny.parker9]

(In reply to Daniel Holbert [:dholbert] from comment #5)
> Danny, are you using...
>  - the "fullscreen" button (rightmost button at bottom of the video)
> ...or:
>  - the "Theater mode" button (2nd-to-right button at bottom of the video)
> 
> I'm not clear from comment 0 which one, because you mention both "maximise"
> (which sounds like fullscreen) and "half screen" (which I think sounds like
> Theater mode but I'm not sure)

Please accept my apologies for this confusion, as an IT Professional I should 
know better.

I am on about the theatre mode button the full screen button works fine.

Comment 7

[Daniel Holbert [:dholbert]]

Thanks! I believe I've just hit this bug as well. --> Promoting it from unconfirmed.

Sample video (from the screenshot), for reference: https://www.youtube.com/watch?v=bDD19jK6_hg

Comment 8

[Daniel Holbert [:dholbert]]

Attachment: screencast of bug in Firefox

Here's a screencast of me reproducing the bug.  I click the theater mode button right away when video loads, and you can see the size of its little rectangle changes, but the video doesn't change size (until I click it a few more times later).

This seems likely to be a race condition of some sort in YouTube's code, where theater mode fails if the sidebar content isn't ready yet or something.

Comment 9

[Mike Taylor [:miketaylr]]

Perfect, thanks Daniel!

Comment 10

[Daniel Holbert [:dholbert]]

Attachment: screencast of bug in Chrome

I hit the same bug in Chrome, actually, as shown in this screencast. Again, I hit the "theater mode" button ASAP here (during an ad), and the button changes state, but the video doesn't resize (until I hit it a few more times later on).

Comment 11

[Mike Taylor [:miketaylr]]

(err, thanks Daniel *and* Danny)

Comment 12

[Daniel Holbert [:dholbert]]

I guess this belongs in "Tech Evangelism", since it's a YouTube bug. (The fact that it reproduces in Chrome indicates that it's not a Mozilla/Firefox-dependent bug.) --> Reclassifying.

Comment 13

[Karl Dubost💡 :karlcow]

I'm not sure it's a bug it looks like more lazy loading of resources. 

What I see is that the video is starting right away BUT the page has not finished loading. For example some of the things are still coming into the right bar. If I wait the network activity to be stabilized, and I click on Theater mode this is working.

https://s.ytimg.com/yts/jsbin/player-en_US-vflbQww0A/base.js

I have the feeling that the page is ready once Ads have been loaded.

We could tell YouTube about it by courtesy.

Comment 14

[Karl Dubost💡 :karlcow]

Contacted YouTube about it today.

Comment 15

[Karl Dubost💡 :karlcow]

A bug was already opened at YouTube, but they will try to give it a bit more attention. 

Thanks everyone.

Comment 16

[Mike Taylor [:miketaylr]]

Karl, are you able to still reproduce?

Comment 17

[Daniel Holbert [:dholbert]]

I'm not able to reproduce now, FWIW.  Now, my first few early clicks on the theater-mode-button have *no effect*  (i.e. the button is inactive, though you can't tell)  The button's icon only changes for clicks that do actually trigger the video to resize.

So I suspect this is fixed now.

Comment 18

[Mike Taylor [:miketaylr]]

Cool, let's close then. Thanks Daniel!