Image pasting doesn't trigger upload sometimes, which is caused by that uploader resource was not loaded properly.
- Create a chart on Window with Microsoft® Excel® for Microsoft 365 MSO (Version 2202 Build 16.0.14931.20116) 64-bit
- Open editor in Confluence
- Copy & paste the chart to Confluence editor
Image should be uploaded.
No upload progress bar shown. No console errors.
After pasting chart from Excel to Chrome on Windows, when paste event triggered, the image is not inserted in DOM tree, which breaks existing base64 images detection.
Upload the image on Firefox.
Upload the image through upload button.