Make sure a blank title string resets the title #17802
Merged
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Summary of the Pull Request
When a VT title sequence sets the title to a blank string, that is meant
to trigger a reset to the default starting value. This used to work in
the past because the blank value was dealt with by conhost, so Windows
Terminal never received a blank title, but that's no longer the case
with the new VT passthrough. This PR fixes the issue by getting Windows
Terminal to handle the blank title strings itself.
References and Relevant Issues
VT passthrough was introduced in PR #17510.
Validation Steps Performed
I've manually verified that the
OSC 0
,OSC 2
, andDECSWT
sequencesnow correctly reset the title when passed a blank title string.
PR Checklist