chrome.debugger forbids DOM.setFileInputFiles, so 'upload' used to hard-fail on
the relay and push users to a --launch/direct-CDP session. Now it falls back to
reconstructing the File entirely in the page (Playwright/Cypress-style: build a
File from the bytes, assign input.files = dataTransfer.files, fire input/change;
for drop/paste composers like X, dispatch synthetic paste+drop with the
DataTransfer). The bytes are streamed in <1 MiB base64 chunks because the relay
tunnels CDP through native messaging (1 MiB/message cap) — a whole image as one
arg closed the channel. Verified live over the relay: an 809 KB PNG lands intact
on a file input with change firing. No more direct-CDP needed for uploads.
leeguooooo
ebb02c65c8