Test: Drag and Drop Images from Web

[justschen]

Refs: #240025

• anyOS @mjbvz
• anyOS @cwebster-99
• anyOS @aeschli

Complexity: 3

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This iteration includes many improvements to vision in chat. One of these includes the ability to drag and drop images from the web into the browser. This works for most standalone images (ie, if the URL ends with .png or .jpeg or such).
 

Sanity testing section

1. From any brower, drag an image into the chat panel.
2. Depending on if it is a valid image, it will either render a full image attachment, a URL image attachment, or a URL.
3. The first 2 (full image attachment or URL image attachment) will work with valid vision models (GPT4o for non-dual accessed, Claude and Gemini for dual-accessed).
4. Make sure that the UI/UX and the response that comes out is correct!
5. History for images should also workk with images in this scenario!

General notes

1. The experience differes from browser to browser. Make sure to try Chrome, Edge, etc
2. Try dragging and dropping directly from sites, like the docs site
3. Sometimes, asking "tell me about this image" is not enough if the image is not coding related.