993126 - Text disappears when you scroll the page then eventually comes back.

Status: RESOLVED INVALID

(Web Compatibility :: Site Reports, defect)

Description

[Dave Miller [:justdave]]

Site: https://medium.com/p/7645a4bf8a2
Text disappears when you scroll the page then eventually comes back.

:: Steps To Reproduce

1.load the page
2.scroll down past the image header
3.
...

:: Expected Result

Read the article

:: Actual Result

State at blank space for several seconds (or give up before it rendered)

:: Additional Information

Software Version: 31.0a1 (2014-04-07)
Device Information: Samsung Galaxy S4, SCH-I545
Reporter's User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:19.0) Gecko/20100101 Firefox/19.0

Comment 1

[Adam Stevenson [:adamopenweb]]

Hmm. I'm not able to reproduce the error on Nexus 4 using same software version. I do see an issue with the downwards pointing arrow though, it auto scrolls to the content in Chrome but is unresponsive in Firefox.

Comment 2

[Dave Miller [:justdave]]

Yeah, I can't reproduce this on a Nexus 7 either (except for the arrow thing).  Wonder if it's something in Samsung's variant of the OS... or maybe some plugin I have installed

I have Always Zoom, Phony, Adblock Plus, and LastPass installed.

Comment 3

[Dave Miller [:justdave]]

And indeed, Phony turns out to be at fault.  With Phony disabled it renders normally.  And I've re-enabled it now, and can no longer reproduce, so I have no clue what it did that was hosing it.

Comment 4

[Dave Miller [:justdave]]

Aha, with Phony set to "Desktop Firefox" I can reproduce this.

Comment 5

[Adam Stevenson [:adamopenweb]]

Ahh nice (not really nice). I also get the error with Phony set to desktop, it's pretty bad.

Oddly I'm not getting the arrow issue when requesting desktop.

Comment 6

[Karl Dubost💡 :karlcow]

I'm able to reproduce both on desktop with different User Agents. The JS code has a lot of user agent sniffing for different behavior depending on desktop and mobile identification.

Comment 7

[Mike Taylor [:miketaylr]]

@Karl, can you be more explicit? I still can't repro in the "normal user" scenario (Desktop w/ Desktop UA, Mobile with Mobile UA). I'm not sure I consider it a valid bug otherwise.

Comment 8

[Karl Dubost💡 :karlcow]

@Mike,

0. Firefox for Android (Aurora version 30)
1. loading the URI https://medium.com/p/7645a4bf8a2
2. It takes a bit of time (heavy image)
3. bottom arrow not visible
4. scrolling a little bit down to show the arrow at the bottom of the screen
5. touching the arrow (nothing is happening)

On the other hand, today I do not have any white area.


---
0. Firefox Desktop - UA desktop (Aurora version 30) with small window 320x480
1. loading the URI https://medium.com/p/7645a4bf8a2
3. touching the arrow (nothing is happening)

no issue with white area.

---
0. Firefox Desktop - UA Firefox Android (version 30) with small window 320x480
1. loading the URI https://medium.com/p/7645a4bf8a2
3. touching the arrow (nothing is happening)

no issue with white area.

--- 

So can't reproduce the white text area today.

Comment 9

[Mike Taylor [:miketaylr]]

> 5. touching the arrow (nothing is happening)

Ahh, interesting. I had no idea that was UI. Indeed, in Chrome, tapping on that arrow scrolls down to the beginning of the article. Let me open a new issue for that, and I'll close this as INVALID.

And thanks for reporting the original issue, Dave. :)