Files

Drag and Drop

datatransferdrag lifecycleiframe boundary

Scripted and native sources

text/plainPlain text

Fallback text payload.

text/htmlRich HTML

Plain text plus HTML markup.

uri/customURL + custom type

URI list plus Canary JSON.

native imageImage elementCanary drag source

Targets and inspection

Text surfaces

Contenteditable
Drag text here. Native insertion should still happen if the browser allows it.

Iframe boundary

Drag a parent source into the frame target, then drag the frame source back out into the inspector zone.

Event sequence

No drag events yet.

Manual checklist
  • Drop files and folders from Finder and inspect DataTransfer items, files, and entry trees.
  • Drag scripted sources into the textarea, contenteditable surface, nested target, and iframe target.
  • Drag the frame source back to the parent inspector zone and compare parent-versus-frame payloads.
  • Watch for incorrect dragenter/dragleave ordering when hovering the nested target.
Runtime
Origin
Secure context
Protocol
Host
Clipboard API
FedCM RP origin
https://canary.polarbrowser.com
FedCM IdP origin
https://canary-idp.polarbrowser.com
Event log
0 entries

No events yet.