Drafts were saved without In-Reply-To and References, and a draft
re-opens in compose mode, where the composer has no original message to
rebuild them from. A reply that was saved and re-opened, or sent and
brought back with Undo, therefore went out as a new conversation.
`createDraft` now stores the threading headers, the composer saves them
with every draft of a reply, and re-opening a draft carries them into
the composer for later saves and the send.
The composer took its client, identities and active account live from
the stores. Switching accounts with a draft open moved it: autosave
created the draft in the other account, and replacing the previous
save sent that account a delete for the old draft's id, which there
names an unrelated message. The composer now stays on the account it
was opened in; the other account's identities and client are ignored
until it is closed.
Printing a message opened an about:blank popup that carries the app's
CSP (`img-src https:`), not the message iframe's strict one, so with
remote content blocked anything the DOM walk missed still loaded when
printing. The print document now carries the iframe CSP and
`no-referrer`.
The DOM walk itself missed several spellings the browser still loads:
- backslashes, which the URL parser reads as slashes (`/\host`,
`https:\host`), and `https:host` without slashes
- an escaped `url` keyword in a style attribute (`\75 rl(`)
- `image-set()` with plain strings
- an unclosed `url(` at the end of a style attribute
`applyNewTabToAnchor` and the viewer's click interceptor only looked at
`<a>`. An `<area>` in an image map kept the target and `rel="opener"`
its sender wrote and took the browser's default click, so the opened
page held `window.opener` and could navigate the webmail tab (reverse
tabnabbing, top navigation in Firefox). `<area>` now gets the same
rel/target treatment and goes through the same click gate, in the
desktop viewer and in the conversation view.
The quoted original in a reply or forward renders in the app document
(a shadow root), where the viewer's iframe CSP does not apply. Opening
a reply therefore loaded every remote image and background of the
original, firing the trackers the viewer had just held back.
The quote's node view now parks remote references in
`data-bulwark-remote-*` attributes for display and restores them when
edits are synced back, so the sent reply still quotes the original as
written. Remote content shows when the policy is `allow` or the sender
is trusted.
The conversation view used on phones built its own sanitizer hook that
only caught `<img src>` starting with a lowercase scheme and inline
style `url()`, and its iframe CSP always allowed http(s) images. With
remote content blocked (the default `ask` policy) uppercase schemes,
srcset, `<source>`, video posters and background attributes still
loaded, so trackers fired when a phone user opened a thread.
The view now uses the desktop viewer's `blockExternalResourcesOnNode`,
and the strict iframe CSP is shared as `emailIframeCsp()` and applied
whenever remote content is blocked, together with `no-referrer`.
A newsletter's List-Unsubscribe `mailto:` was sent from the user's own
account as written: every `to=` field became a recipient, and subject
and body were the sender's choice. The confirmation said only
"Unsubscribe from this sender?", so one click could mail
"I resign" to someone's boss and HR.
The unsubscribe now goes to the single address in the URL (a list of
addresses is refused and `to=` is ignored), the subject is kept on one
line and both subject and body are capped. Both confirmations show the
recipient, subject and body before anything is sent.
Attachment thumbnails were object URLs typed with the sender's MIME
type. Object URLs share the webmail origin, so an `image/svg+xml`
attachment opened from its thumbnail ("Open image in new tab", or
dragged to the tab strip) ran the sender's script as the webmail in
Chromium and Firefox. The drag-out URL and Files thumbnails had the
same shape.
`fetchBlobAsObjectUrl` now re-types every blob to an inert type, and
image thumbnails in mail and Files go through `imageBlobUrl`, which
hands an SVG over as a `data:` URL: it still renders in the `<img>`,
but opened on its own it gets an opaque origin.
The composer uploaded any file and learned about `maxSizeUpload` (per
blob) or `maxSizeAttachmentsPerEmail` (per message) only from a failed
upload or a failed send. Files over the per-file limit, and files that
would push the message past the per-message limit, are now skipped
with a message naming the limit. The limits come from the account the
message is composed in.
Stalwart advertises `maxDelayedSend` as a fixed 30 days, but its MTA
rejects any hold beyond `futureRelease`, 7 days by default. Scheduling
a message 8 to 30 days ahead passed the picker and then failed with
"501 5.5.4 Requested hold time exceeds maximum of 604800 seconds".
On Stalwart the advertised 30 days now counts as 7. When a submission
is still rejected for its hold time, the limit from the error message
replaces it for the session, and the composer shows the translated
"later than the server allows" message instead of the raw SMTP reply.
In the unified view each row can be shaded with its account colour
instead of carrying an account dot, behind a layout setting. Tags keep
their own generated hue on their chips.
JMAP thread ids are only unique within their account - Stalwart hands out
per-account counters such as "b" - so the cross-account views merged
unrelated conversations that happened to share an id, and every
client-side thread map (expansion, cache, loading flag, counts,
virtualizer key) mixed them up the same way.
Give ThreadGroup an account-scoped `threadKey` derived from the email's
source stamps and key grouping and all thread state by it. `threadId`
stays the raw id for Thread/get, which #281 already routes to the owning
account. fetchThreadEmailCounts now asks each source account for its own
threads instead of one client for every id. Single-account views carry no
stamps, so their key is the bare id and nothing changes there.
The viewer forces `img { max-width: 100% !important }` onto every image.
That !important also beats a sender's *inline* max-width, which breaks the
common newsletter idiom of sizing an image with max-width + max-height +
width:100%:
<img width="200" height="134"
style="display:block; max-height:134px; max-width:200px; width:100%;">
With the sender's max-width:200px overridden, width:100% grows the image to
the full pane, while the max-height:134px it left alone still clamps the
height - so the picture renders squashed flat.
Measured on a real Namecheap renewal notice (hero asset 300x200, natural
ratio 1.50) rendered with the viewer's own stylesheet: the hero laid out
540x134, an aspect ratio of 4.03 - stretched 2.7x. Identical at a 390px
pane. With this change it lays out 200x133, ratio 1.50.
Only force the cap on images that declare no width of their own, exactly as
the table rule alongside it already does for the same reason (#790). height
keeps its !important, so an image with a fixed inline height (the far more
common `style="width:600px;height:400px"`) is unaffected - verified
unchanged at 600x400.
Images with no inline max-width are still capped at 100%, still with
!important, so an email's own stylesheet cannot escape the pane - an email
carrying `img { max-width: none }` still measures 710px, not 2000px. An
image whose inline max-width exceeds the pane now overflows into the body's
existing horizontal scroll rather than being silently distorted: the same
trade-off #790 accepted for tables, and fitEmailBodyWidth() still scales it
to fit on a phone.
Applied to all three paths that build an email document: the reading pane,
the thread conversation cards, and the print view.
Claude-Session: https://claude.ai/code/session_019KwXZEwxijHRbfobfXmcK2
The dismiss-on-scroll listener runs in the capture phase, so it also saw
scroll events from the picker's own tag list: past ten labels, the first
scroll closed the picker and the lower labels were unreachable. Ignore
scrolls originating inside it.
Also give the portalled container `role="menu"` - its rows are
`menuitemcheckbox` and the anchor advertises `aria-haspopup="menu"` - and
drop its duplicate `max-h`/`overflow-y-auto`, which TagPicker already has.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The Labels quick-action on an email row called `onSetTag(null)`, which
clears every tag on the message rather than offering one to apply. On an
untagged message that writes nothing, so the button appeared dead: no
picker, no feedback. Assigning a tag from the opened email worked, since
the reading pane renders a real picker.
Clicking the row's tag icon now opens the same `TagPicker` used by the
context menu and the reading pane, wired to the existing `onSetTag`
handler, so a tag can be applied or removed without opening the message.
The picker is portalled to the body: every row sits inside a `transform`ed
virtual item, which would otherwise make a `fixed` child scroll with the
list and clip it at the scroller's edge. It flips above the row near the
viewport bottom, and dismisses on outside click, Escape, scroll or resize.
The hover toolbar stays visible while the picker is open, since the row is
no longer hovered once the pointer moves onto it.
Covered by integration/tests/14-hover-tag.spec.ts, which checks the picker
opens, the keyword reaches the server under `$label:`, a second click
removes it, and the click does not fall through and open the message.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Some senders ship the images their HTML body embeds via cid: as
application/octet-stream with no Content-Disposition and no filename.
The body rendered them fine, but the "hide inline images" check only
recognised parts declared inline with an image/* type, so they also
showed up as nameless "Attachment" chips next to the real files.
Both viewers now scan the HTML they actually render for cid: references
(the same pattern the renderer rewrites to blob URLs) and hide a
referenced part when it is an image or generically typed. An explicit
attachment disposition always keeps its chip, as does a referenced part
with a real non-image type, since that chip is its only download. Plain
text rendering references nothing, so nothing is hidden there. The
shared rule lives in lib/attachment-visibility.ts so the desktop viewer,
the thread view and the decrypted-message path cannot drift apart.
Linus Rath
Luis Felipe Marzagao
Linus Rath
lucamzanon
Shuki Vaknin
Douwe ZijlstraandClaude Opus 5
dealerweb
Almost-Senseless-Coder