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Map freezes when moved too fast #4959

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openstreetmap-trac opened this issue Jul 23, 2021 · 3 comments
Closed

Map freezes when moved too fast #4959

openstreetmap-trac opened this issue Jul 23, 2021 · 3 comments

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@openstreetmap-trac
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Reporter: Michi
[Submitted to the original trac issue database at 8.39am, Monday, 19th August 2013]

Hi,

if I move the map on the website too fast (in terms of mouse clicks, not of movement speed), the map freezes and is not moveable anymore. I think this looks like a problem with events: The cursor icon is still the same icon which is displayed, when the mouse button is clicked for movement ("closed hand"). Probably some function didn't recognize the onmouseup event.

The zoom function (mouse wheel) and double click feature are still working, though. I first noticed this issue since pull request 378 went live, but I don't know if this is just coincidence.

The issue can be fixed by reloading the site.

I'm using XP with FF 23.0.1.

Steps to reproduce:

  • Click really fast and move the map only about 50 px at once.
  • After about five clicks the movement stops and the closed hand cursor is displayed.
@openstreetmap-trac
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Author: TomH
[Added to the original trac issue at 11.21pm, Monday, 19th August 2013]

For the record PR #378 was the hash anchor one. I have to say that nobody else has reported this and I'm not able to reproduce it with FF 23 on linux.

@openstreetmap-trac
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Author: jfire
[Added to the original trac issue at 11.33pm, Monday, 19th August 2013]

Are there any errors printed in the JavaScript console when this occurs?

@openstreetmap-trac
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Author: Michi
[Added to the original trac issue at 1.15am, Wednesday, 21st August 2013]

I think I've nailed it down to one FF extension: I'm using Html Validator version 0.9.5.1. As soon as I deactivate that extension, I cannot reproduce this issue anymore.

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