Ian Gilman

Yeah, I don't think it has to do with collection mode. Clearly we've discussed this issue before: https://github.com/openseadragon/openseadragon/issues/1408 https://github.com/openseadragon/openseadragon/issues/893 https://github.com/openseadragon/openseadragon/issues/1569 https://github.com/openseadragon/openseadragon/issues/1753 https://github.com/openseadragon/openseadragon/issues/1938. We don't want to just remove the focus...

@SamHall No worries! Thank you again for bringing it up :)

Each image potentially has a different zoom, so the viewport version of this function is kind of meaningless with multi-image. That's why it's an error, and why there's no way...

Yup, that's a perfect solution. I wouldn't call it a workaround... it's exactly what you're supposed to do in order to get an accurate result. :)

@Ekjot07 It is open! It would be great if you could fix it up. Do you understand the issue? It's just a little bit of documentation that's needed.

@Pritam1729 Are you looking to contribute a fix for this issue? If so, please do! All we need is a little update to the error message. Something like: ``` [Viewport.imageToViewportZoom]...

@wmavis Good catch! You're absolutely right. Thank you.

It appears that the simple image tile source doesn't support `loadTilesWithAjax`. Thanks for finding this! @seanich, @avandecreme, any interest from either of you to implement that? @paulmharwood are you using...

@paulmharwood How big are your images (in pixels)? If they are only a few thousand pixels wide, there's not need to do something more intense than the simple tile source...

Yes, sounds like the right solution. That said, you could also use the legacy tile source with just a single tile: http://openseadragon.github.io/examples/tilesource-legacy/ That might be a decent work around for...