#1877 added Chrome to SheetApp for hosts that embed the sheet natively, but the web build never set it: an iframe host that owns the files still draws the title bar it duplicates, and Backstage's Open/Save As can replace the document behind the host's back. Parse the flag where the other URL flags are parsed; the UI already honours Chrome, so nothing else changes.
Co-Authored-By: Claude Code <noreply@anthropic.com>
A page that frames GridCraft on the same origin can now open workbooks
in it and store what it saves, through postMessage, instead of Save and
Export becoming browser downloads. Built for a Nextcloud integration,
but nothing in it is host-specific.
Only the web shell changes:
- gridcraft:open from the parent goes through the inbox, like a picked
or dropped file
- Services::download sends the bytes to the parent (gridcraft:save); an
.xlsx workbook handed over counts as saved under that name
- gridcraft:dirty reports unsaved changes; gridcraft:ready and
gridcraft:failed report start-up
- in host mode no sample opens, and ?author= names the user for notes
and comments
Enabled only by ?host=parent inside a frame; only the parent window on
the page's own origin is heard or answered. Without it nothing changes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G6GtUCaPiCMEQCN4QcdQnp
