ComfyUI bl12f68 breaks drag-and-drop workflow import across browsers
Users report ComfyUI build bl12f68 no longer accepts dragged.json workflow files or images in Chrome and other browsers, breaking a core UI pattern that worked in prior versions.
ComfyUI build bl12f68 has broken drag-and-drop workflow loading across multiple browsers. The issue affects both.json workflow files and images dragged directly into the browser canvas — a core interaction pattern that has worked reliably in previous versions. Users testing Chrome 148.0.7778.97, Firefox, and Edge all see the same behavior: dragged files no longer trigger the workflow import flow.
The regression appears to have landed sometime between the last stable release and bl12f68, though the exact commit is unclear. ComfyUI's drag-and-drop loader has been a staple of the workflow-sharing ecosystem — users routinely post screenshots with embedded workflow metadata to Reddit and Discord, expecting recipients to drag the image straight into ComfyUI and start iterating. When that flow breaks, the entire sharing loop stalls. No error messages appear in the browser console; the UI simply ignores the drop event.
A temporary workaround is to use the "Load" button in the top menu and select the.json file manually, or to extract embedded workflow metadata from images using a third-party tool before importing. Neither is as fluid as the drag-and-drop pattern, and both add friction to rapid prototyping sessions. Similar regressions in the past have been patched within days once isolated. The next nightly build should clarify whether this is a one-off packaging error or a deeper change to the browser event handlers — either way, the community will be watching for a revert or a documented alternative before the next stable tag.