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Clicking a thread left the pane blank. Two independent bugs, both from the
same false premise: that setHtml() navigates to the base URL it is given.
It does not. setHtml() navigates to a data: URL carrying the markup and
applies the base URL afterwards, purely as the document's origin. Verified
empirically on Qt 6.11.
Built on that wrong assumption were:
- MessagePage::acceptNavigationRequest compared the navigation's URL
against documentUrl() and rejected everything else, so the document load
was refused. It now accepts a typed main-frame navigation, which is one
we initiated ourselves.
- RequestInterceptor exempted exactly the qtmaildir: base URL and denied
everything else, so the data: document load was blocked too.
The interceptor fix is scoped to ResourceTypeMainFrame rather than allowing
the data: scheme outright. A blanket allow would have been a real hole: a
message body can write <img src="data:..."> or an iframe, and the existing
dataSchemeBlocked test in test_interceptor.cpp was right to fail when that
was tried. Sub-resource data: URLs remain denied.
Note this was never working. The drafted version had the same defect in a
different spelling (it compared url.scheme() rather than the whole URL, and
would have rejected the data: navigation just the same), and task 11 shipped
with no runtime test to catch it. test_messageview.cpp now pins all three
facts: the document loads, its text reaches the page, and a data: image
inside a hostile body stays blocked.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Covers the items verifiable without a person at the screen. Items 4, 6-15
need eyes on the rendering, 16-18 write to the live index and wait for the
maintainer, and 19-20 need a sync script that does not exist on this
machine yet.
Item 5's premise turned out to be wrong rather than the code: notmuch
accepts `tag:` and returns 1,917 threads, so there is no error to report.
The CLI agrees exactly, as it does on tag:inbox.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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