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Monday, October 28th 2019, 7:48am

On IOS 13, web pages are reloaded frequently

I studied for a few days and didn't solve the problem. I hope to get help.Thanks a lot.

When the number of hotspots exceeds 80, the web page also reloads all the time.
The type of hotspot is text.
When embedpano, html5="css3D".It's going to be a lot better.But i want to use 'prefer+webgl'.

In the following models:
iOS13 iPhone 8 plus, iPhone 11 Pro, iPhone 11 Pro Max
P.S. We use the Krpano version (

<hotspot name="h12_s" style="wtkp_hotspotstyle_label_text" title="test" ></hotspot>
<style name="wtkp_hotspotstyle_label_text" type="text" css="font-size:26px; text-align:center; color:#fff; padding:0 10px 0px 10px;font-weight:lighter;" bgcolor="0x000000" bgalpha="0.5" bgborder="0 0xFF0000 1" bgshadow="0 1 0 0x1c93fa 1" bgroundedge="22" edge="bottom"/>

This post has been edited 2 times, last edit by "liuqinrui" (Oct 28th 2019, 7:59am)


Monday, October 28th 2019, 9:20am


the crash/reloads means the memory need is too high.

A text-hotspot can also need a lot of memory. Internally every hotspot textfield will be converted to an image/texture and depending on the size and resolution (oversampling) a hotspot can need a noticeable amount of memory.

You could try adding renderer="css3d" to these hotspots, then the browser is rendering these textfields by its own by using CSS-3D-transforms.

Best regards,


Monday, October 28th 2019, 2:54pm

Thanks Klaus. ;-)
I once used this method, but it didn't work. I think it might be because of cache. This time, I succeeded in using render ='css3d '.


Tuesday, October 29th 2019, 7:59am

Although it solved my problem, I found another one.
When you move the scene, the hotspot shakes.


Tuesday, October 29th 2019, 9:03am

post your tour online, without that nobody can help