fix: support copy fallback on http - #5294
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Use event clipboard data when async clipboard is unavailable. This keeps copy working in non-secure contexts. Co-Authored-By: Claude Sonnet 4.6 noreply@anthropic.com
Preserve cut ranges in the synchronous clipboard fallback path and keep text/html output aligned with the async clipboard branch. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Keep fallback paste aligned with HTML clipboard data and let plain text copy continue when custom HTML generation fails. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
![github-advanced-security[bot]](https://avatars.githubusercontent.com/in/57789?s=60&v=4){kind=small}
Snapshot paste targets before async reads and decode copied HTML cell content through DOM parsing so entity values round-trip correctly. Co-Authored-By: Claude Sonnet 4.6 noreply@anthropic.com
Handle CRLF after br tags, detect table markup case-insensitively, and normalize decoded non-breaking spaces. Co-Authored-By: Claude Sonnet 4.6 noreply@anthropic.com
Snapshot copy and paste state before async clipboard work. Only clear cut sources after a confirmed paste write. Co-Authored-By: Claude Sonnet 4.6 noreply@anthropic.com
Bind clipboard paste to a single data snapshot and cut operation. Only clear source cells that were not overwritten by a successful paste. Co-Authored-By: Claude Sonnet 4.6 noreply@anthropic.com
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Summary
event.clipboardDatafallback when async clipboard API is unavailable.@visactor/vtable.Related issue
close #5274
Test plan
rushx compilefor@visactor/vtable.🤖 Generated with Claude Code