Firefox: Out of view charts do not load

[Zoe]

On a page with multiple charts whereby a user has to scroll down to view all charts, the charts out of the screen view do not load until they are within screen view after scrolling.

 

 

 

This only occurs with the Firefox browser.

 

 

 

How can this be resolved, to force charts out of view to load and not wait for a user to scroll.

[FusionCharts Support]

Hi,

Could you please try the FusionCharts BluePrint Application live from our Online Demos with Firefox and let us know whether you are facing the same issue?

http://fusioncharts.com/demos/Blueprint/

You can also see another BluePrint Application using FusionWidgets.

http://fusioncharts.com/widgets/demos/Blueprint/

and another page with lots of charts where you can scroll up down.

http://fusioncharts.com/widgets/demos/Blueprint/DrillToEachProduct.asp?op=revenue&year=1996

If you are facing the issue only with your implementaion there must some other Framework or process which is rendering the charts again and again in Firefox.

What I suspect is that the scroll mechanism might be not the normal borwser's scroll but some virtual scroll mechanism where you are hiding the page elements when the elements are out of scroll view zone. Again when they come ito scroll view area you are making them visible. What happens in Firefox, is that whenever you hide and display an element it redraws the element. Hence, your charts being rendered again would show up accordingly.

This is what I suspect. There might be some other reasons.

[Mangalores]

I'm not sure, but it seemed to me that this is a Firefox bug/feature. We had the same behaviour with entirely different chart framework. Flash movies several pages down would only start to load, if you scrolled down to them, not when finished with the rest.

 

 

 

I'm not sure this can be resolved within the Flash as it seems to be how the browser deals with the Flash movie (and probably when it allows it to make a resource request), but would be great to know if one can set up FusionCharts. Maybe Firefox 3.0 deals with this differently.