Image thumbnails disappears from asset listing

[neha04]

Expected behavior

The image thumbnails must not disappear from asset preview listing(Preview Tab)

Actual behavior

Image thumbnails disappears from asset listing if we hover again on the assets in the asset tree

Steps to reproduce

• Open asset folder.
• Now expand that folder in tree and quickly hover some of the assets.
• Those assets disappears from the asset listing.

[dvesh3]

cannot reproduce!..do you see any error on console?

[neha04]

No,There was no error in console.You may also try opening a folder.Then open a few images from the tree(open those that are visible in the preview list).Now open folder using tab panel.

[neha04]

image.zip

[thgross]

This happens to me, too. Only in Chrome.

[dvesh3]

@neha04 @thgross Please share Chrome version.

[thgross]

My current Chrome Version is 78.0.3904.108. It happened for at least 3 major Chrome releases, so this problem is not bound to a specific version of Chrome.

[neha04]

My current Chrome Version is Version 74.0.3729.169 (Official Build) (64-bit)

[AlternateIf]

can also reproduce this on the pimcore demo. oddly this is only reproducible if the chrome console is not opened upon site load

@dvesh3

[dvesh3]

@AlternateIf thanks for reporting. Yes, I can only reproduce this on pimcore.demo and very random.

[dvesh3]

Resolved by b8001f3

root cause: same url /admin/asset/get-image-thumbnail?id={assetId}&treepreview=true used for both grid preivew & tree preview. so when you move quickly over tree grid which then calls the same image url and moves out then it cancels the request which leads to corrupted image in grid preview.

Fix: Added extra param to grid preview image url