Summary:
Ref T13516. Deletes all old filetree / flex / active / collapse nav code in favor of the new code.
Restores the inline tips in the path tree.
Test Plan: {F7374175}
Maniphest Tasks: T13516
Differential Revision: https://secure.phabricator.com/D21154
Summary: Ref T13516. Apply basic UI styling to the new UI and make some more interaction work.
Test Plan: {F7374096}
Maniphest Tasks: T13516
Differential Revision: https://secure.phabricator.com/D21153
Summary: Ref T13516. Generate a tree structure based on the page changesets. Still missing styles and a whole lot of behavior.
Test Plan: {F7373967}
Maniphest Tasks: T13516
Differential Revision: https://secure.phabricator.com/D21152
Summary: Ref T13516. This glues "FormationView" to "ChangesetList". The actual tree is not functional in any meaningful way yet.
Test Plan: {F7373838}
Maniphest Tasks: T13516
Differential Revision: https://secure.phabricator.com/D21151
Summary:
Ref T13516. Currently, the "File Tree" element is a semi-dynamic side panel that's implemented as a special mode of a side nav panel.
This implementation is fairly clunky, and arose from organic growth out of the side nav. As such, it has some weird behaviors, doesn't have builtin support for show/hide, and can't generalize easily.
Introduce a "FormationView" which supports loading a page up with piles of side panels in various modes.
Test Plan: No callers and no user-visible impact.
Maniphest Tasks: T13516
Differential Revision: https://secure.phabricator.com/D21150
Summary:
Ref T13515. This restores the "Open in Editor" behavior to Diffusion, and makes "\" work there.
The URI pattern is now sent as a structured template to the client, so the code will work properly if a file path contains "%l".
Test Plan:
- Clicked "Open in Editor" and pressed "\" in Diffusion when viewing a file.
- Clicked a line, hit "\", got the file opened to that line.
Maniphest Tasks: T13515
Differential Revision: https://secure.phabricator.com/D21149
Summary:
Ref T13515. Currently, "Open in Editor" only works with a file-level selection.
- If we have a change-level or inline-level selection, open the parent changeset.
- If we have no selection, but the banner is showing something, open the fine shown in the banner.
Test Plan: With files, inlines, changes, and no selection, pressed "\". Saw files pop open in my external editor.
Maniphest Tasks: T13515
Differential Revision: https://secure.phabricator.com/D21148
Summary:
Ref T13515. Adding "\" ("Open in External Editor") made this slighlty worse, but it was already pretty bad.
Long ago the keys had a special style on them, but this got changed and dropped somewhere around D16568 -- although at the time, I think they still had a grey background (see T11654).
Some later change removed this background.
Put the background back and separate the keystrokes into groups.
Test Plan: {F7370615}
Maniphest Tasks: T13515
Differential Revision: https://secure.phabricator.com/D21141
Summary:
Ref T13455. Update the other "view state" properties to work like "highlight" now works.
Some complexity here arises from these concerns:
- In "View Standalone", we render the changeset inline. This is useful for debugging/development, and desirable to retain.
- In all other cases, we render the changeset with AJAX.
So the client needs to be able to learn about the "state" properties of the changeset on two different flows. Prior to this change, each pathway had a fair amount of unique code.
Then, some bookkeeping issues:
- At inital rendering time, we may not know which renderer will be selected: it may be based on the client viewport dimensions.
- Prior to this change, the client didn't separate "value of the property for the changeset as rendered" and "desired value of the property".
Test Plan:
- Viewed changes in Differential, Diffusion, and in standalone mode.
- Toggled renderer, character sets, and document engine (this one isn't terribly useful). Reloaded, saw them stick.
- Started typing a comment, cancelled it, hit the undo UI.
Maniphest Tasks: T13455
Differential Revision: https://secure.phabricator.com/D21138
Summary:
Ref T13455. Add container-level storage for persistent view state, and persist "Highlight As..." inside it.
The storage generates a "PhabricatorChangesetViewState" configuration object as an output.
When preferences are expressed on a diff and that diff is later attached to a revision, we attempt to copy the preferences.
The internal storage tracks per-changeset settings, but currently always uses "last update wins" to apply the settings in the UI.
Test Plan:
- Viewed revisions, changed highlighting, reloaded. Saw highlighting stick in revision view and standalone view.
- Viewed commits, changed highlighting, reloaded. Saw highlighting stick.
- Created a diff, changed highlighting, turned it into a revision, saw highlighting persist.
Subscribers: jmeador, PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13455
Differential Revision: https://secure.phabricator.com/D21137
Summary: Ref T13515. See PHI1661. If a file is selected, add a keystroke to click the "Open in External Editor" link.
Test Plan: In Safari, Chrome, and Firefox: used "J" to select a file, then "\" to open it in an external editor. (In Safari and Chrome, this prompts.)
Maniphest Tasks: T13515
Differential Revision: https://secure.phabricator.com/D21135
Summary:
Fixes T13508. The "Notification" and "Messages" icons in the menu bar have a CSS transition animation on hover.
In Chrome, when this element moves up 2px, you can get a flicker in and out of the hover state if the user's cursor is at the very bottom of the element, since the bounding box for the element is rapidly sliding in and out of the area under the cursor.
To fix this: as we move the element up, also make it taller.
Test Plan: In Safari, Chrome, and Firefox: put my cursor at the very bottom of the element, no longer saw any animation flickering.
Maniphest Tasks: T13508
Differential Revision: https://secure.phabricator.com/D21133
Summary:
Fixes T13510. This migration currently fails because it tries to affect the "paste" database, but when it runs this database will be named "pastebin".
Since the cost of fixing it in place or moving it past the rename migration both seem relatively high (and the cost of throwing it away is plausibly zero) just throw it for now.
Test Plan: Looked at file, saw no more code that can execute.
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13510
Differential Revision: https://secure.phabricator.com/D21132
Summary:
Ref PHI1292. Enable fulltext searchs in paste. Maybe this should only index a snippet instead of the entire content?
Also updates table names in `PhabricatorPasteQuery`.
Test Plan: Created some pastes, indexed them, searched for them.
Reviewers: amckinley
Subscribers: codeblock, Korvin, PHID-OPKG-gm6ozazyms6q6i22gyam
Differential Revision: https://secure.phabricator.com/D20650
Summary:
See <https://discourse.phabricator-community.org/t/storage-upgrade-error/3748>.
It is broadly unsafe for migrations to use "save()". If the object gains new fields later, the query will include "SET newField = X", which will fail against the old schema which is in the process of being upgraded.
Instead, migrations must issue raw SQL against the schema as it is expected to exist at the time the migration executes.
Migrations have followed this rule for a long time, but this ~6 year old migration was overlooked. Update it to issue a raw query to perform the policy update.
Test Plan: This is somewhat flimsy since rebuilding a genuine reproduction case is messy, but used "bin/storage --apply ..." to at least get the new query to execute against modern Phabricator without issues.
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Differential Revision: https://secure.phabricator.com/D21124
Summary:
Fixes T5028. Older versions of Git (apparently, from before 2010) did not provide a way to extract the raw body of a commit message from "git log", so we approximate it with "subject" and "wrapped body".
In newer versions of Git, the raw body can be extracted exactly.
Adjust how we extract messages based on the version of Git, and try to be more faithful to edge cases: particularly, be more careful to extract the correct number of trailing newlines.
Test Plan:
- Added "var_dump()" + "die(1)" later in this method, then pushed various commit messages. Used "&& false" to force execution down the old path (either path should work in modern Git).
- Observed more faithful extraction of messages, including a more faithful extraction of the number of trailing newlines. Extraction is fully faithful if we can go down the "%B" path, which we should be able to in nearly all modern cases.
- Not all messages extract faithfully or consistently across the old and new versions, but the old extraction is destructive so this is likely about as close as we can realistically ever get.
Maniphest Tasks: T5028
Differential Revision: https://secure.phabricator.com/D21027
Summary:
Depends on D21018. Ref T13493. Ref T6703. The "ExternalAccount" table has a unique key on `<accountType, accountDomain, accountID>` but this no longer matches our model of reality and changes in this sequence end writes to `accountID`.
Remove this key.
Then, remove all readers of `accountType` and `accountDomain` (and all nontrivial writers) because none of these callsites are well-aligned with plans in T6703.
This change has no user-facing impact today: all the rules about linking/unlinking/etc remain unchanged, because other rules currently prevent creation of more than one provider with a given "accountType".
Test Plan:
- Linked an OAuth1 account (JIRA).
- Linked an OAuth2 account (Asana).
- Used `bin/auth refresh` to cycle OAuth tokens.
- Grepped for affected symbols.
- Published an Asana update.
- Published a JIRA link.
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13493, T6703
Differential Revision: https://secure.phabricator.com/D21019
Summary: Depends on D21016. Ref T13493. This copies existing external account "accountID" values into the "ExternalAccountIdentifier" table, preparing for an authority switch.
Test Plan: Ran migration several times, looked at the data that came out of it, saw sensible results. Logged out / in with external accounts.
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13493
Differential Revision: https://secure.phabricator.com/D21017
Summary:
Depends on D21010. Ref T13493. External accounts may have multiple different unique identifiers, most often when v1 of the API makes a questionable choice (and provies a mutable, non-unique, or PII identifier) and v2 of the API uses an immutable, unique, random identifier.
Allow Phabricator to store multiple identifiers per external account.
Test Plan: Storage only, see followup changes.
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13493
Differential Revision: https://secure.phabricator.com/D21011
Summary: Ref T13395. Moves a small amount of remaining "libphutil/" code into "phabricator/" and stops us from loading "libphutil/".
Test Plan: Browsed around; there are likely remaining issues.
Maniphest Tasks: T13395
Differential Revision: https://secure.phabricator.com/D20981
Summary:
Depends on D20966. Ref T13486. Curtains currently render subscribers in a plain text list, but the new ref list element is a good fit for this.
Also, improve the sorting and ordering behavior.
This makes the subscriber list take up a bit more space, but it should make it a lot easier to read at a glance.
Test Plan: Viewed object subscriber lists at varying limits and subscriber counts, saw sensible subscriber lists.
Maniphest Tasks: T13486
Differential Revision: https://secure.phabricator.com/D20967
Summary:
Ref T13486. When a curtain element like "Author" in Maniphest has a very long username, the wrapping and overflow behavior is poor: the date is obscured.
Adjust curtain elements which contain lists of references to other objects to improve wrapping behavior (put the date on a separate line) and overflow behavior (so we get a "..." when a name overflows).
Test Plan: {F7179376}
Maniphest Tasks: T13486
Differential Revision: https://secure.phabricator.com/D20966
Summary: Ref T13480. Creating a rule in Herald currently uses the older radio-button flow. Update it to the "clickable menu" flow to simplify it a little bit.
Test Plan: Created new personal, object, and global rules. Hit the object rule error conditions.
Maniphest Tasks: T13480
Differential Revision: https://secure.phabricator.com/D20956
Summary: Depends on D20931. Ref T13362. Move all "Console"-style interfaces to use a consistent layout based on a new "LauncherView" which just centers the content.
Test Plan: Viewed all affected interfaces.
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13362
Differential Revision: https://secure.phabricator.com/D20933
Summary: Fixes T13482. Although this style makes physical sense by relationship to a written checklist, it seems to do more harm than good in practice.
Test Plan: Wrote a checklist with a checked-off item in remarkup, saw no more line-through.
Maniphest Tasks: T13482
Differential Revision: https://secure.phabricator.com/D20954
Summary: Fixes T13476. Policy tags in object headers and "Visible To" controls in some dialog contexts may stack and wrap oddly. Improve spacing so they don't overlap visually when wrapping.
Test Plan: Viewed affected interfaces in narrow and wide windows.
Maniphest Tasks: T13476
Differential Revision: https://secure.phabricator.com/D20944
Summary:
Ref T13444. To interact meaningfully with "DestructionEngine", objects need a PHID. The "UserEmail" object currently does not have one (or a real "Query").
Provide basic PHID support so "DestructionEngine" can interact with the object more powerfully.
Test Plan:
- Ran migrations, checked data in database, saw sensible PHIDs assigned.
- Added a new email address to my account, saw it get a PHID.
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13444
Differential Revision: https://secure.phabricator.com/D20913
Summary:
Ref T13444. You can currently explicitly unassign an identity (useful if the matching algorithm is misfiring). However, this populates the "currentEffectiveUserPHID" with the "unassigned()" token, which mostly makes things more difficult.
When an identity is explicitly unassigned, convert that into an explicit `null` in the effective user PHID.
Then, realign "assigned" / "effective" language a bit. Previously, `withAssigneePHIDs(...)` actualy queried effective users, which was misleading. Finally, bulk up the list view a little bit to make testing slightly easier.
Test Plan:
- Unassigned an identity, ran migration, saw `currentEffectiveUserPHID` become `NULL` for the identity.
- Unassigned a fresh identity, saw NULL.
- Queried for various identities under the modified constraints.
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13444
Differential Revision: https://secure.phabricator.com/D20908
Summary:
Ref T13444. Currently, identities for a particular email address are queried with "LIKE" against a binary column, which makes the query case-sensitive.
- Extract the email address into a separate "sort255" column.
- Add a key for it.
- Make the query a standard "IN (%Ls)" query.
- Deal with weird cases where an email address is 10000 bytes long or full of binary junk.
Test Plan:
- Ran migration, inspected database for general sanity.
- Ran query script in T13444, saw it return the same hits for "git@" and "GIT@".
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13444
Differential Revision: https://secure.phabricator.com/D20907
Summary:
Fixes T13461. Some applications provide hints about policy strength in the header, but these hints are inconsistent and somewhat confusing. They don't make much sense for modern objects with Custom Forms, which don't have a single "default" policy.
Remove this feature since it seems to be confusing things more than illuminating them.
Test Plan:
- Viewed various objects, no longer saw colored policy hints.
- Grepped for all removed symbols.
Maniphest Tasks: T13461
Differential Revision: https://secure.phabricator.com/D20918
Summary:
Fixes T13452. We currently give users mixed signals about the interaction mode of this text: the cursor says "text" but the behavior is "grab".
Make the behavior "text" to align with the cursor. An alternate variation of this change is to remove the cursor, but this is preferable if it doesn't cause problems, since copying the task ID is at least somewhat useful.
Test Plan: In Safari, Firefox, and Chrome: selected and copied object names from workboard cards; and dragged workboard cards by other parts of their UI.
Maniphest Tasks: T13452
Differential Revision: https://secure.phabricator.com/D20898
Summary: Ref T13440. Give the table more obvious visual structure and get rid of the largely useless header columns.
Test Plan: Viewed table, saw a slightly cleaner result.
Maniphest Tasks: T13440
Differential Revision: https://secure.phabricator.com/D20885
Summary: Depends on D20883. Ref T13440. In most cases, all changes belong to the same repository, which makes the "Repository" column redundant and visually noisy. Show repository information in a section header.
Test Plan: {F6989932}
Maniphest Tasks: T13440
Differential Revision: https://secure.phabricator.com/D20884
Summary:
Fixes T13437. This URI construction was just missing URI encoding.
Also, trim the symbol because my test case ended up catching "#define\n" as symbol text.
Test Plan:
- Configured a repository to have PHP symbols.
- Touched a ".php" file with "#define" in it.
- Diffed the change.
- Command-clicked "#define" in the UI, in Safari/MacOS, to jump to the definition.
- Before: taken to a nonsense page where "#define" became an anchor.
- After: taken to symbol search for "#define".
Maniphest Tasks: T13437
Differential Revision: https://secure.phabricator.com/D20876
Summary:
Fixes T13435. If you move Phabricator or copy data from one environment to another, the repository URI index currently still references the old URI, since it writes the URI as a plain string. This may make "arc which" and similar workflows have difficulty identifying repositories.
Instead, store the "phabricator.base-uri" domain and the "diffusion.ssh-host" domain as tokens, so lookups continue to work correctly even after these values change.
Test Plan:
- Added unit tests to cover the normalization.
- Ran migration, ran daemons, inspected `repository_uriindex` table, saw a mixture of sensible tokens (for local domains) and static domains (like "github.com").
- Ran this thing:
```
$ echo '{"remoteURIs": ["ssh://git@local.phacility.com/diffusion/P"]}' | ./bin/conduit call --method repository.query --trace --input -
Reading input from stdin...
>>> [2] (+0) <conduit> repository.query()
>>> [3] (+3) <connect> local_repository
<<< [3] (+3) <connect> 555 us
>>> [4] (+5) <query> SELECT `r`.* FROM `repository` `r` LEFT JOIN `local_repository`.`repository_uriindex` uri ON r.phid = uri.repositoryPHID WHERE (uri.repositoryURI IN ('<base-uri>/diffusion/P')) GROUP BY `r`.phid ORDER BY `r`.`id` DESC LIMIT 101
<<< [4] (+5) <query> 596 us
<<< [2] (+6) <conduit> 6,108 us
{
"result": [
{
"id": "1",
"name": "Phabricator",
"phid": "PHID-REPO-2psrynlauicce7d3q7g2",
"callsign": "P",
"monogram": "rP",
"vcs": "git",
"uri": "http://local.phacility.com/source/phabricator/",
"remoteURI": "https://github.com/phacility/phabricator.git",
"description": "asdf",
"isActive": true,
"isHosted": false,
"isImporting": false,
"encoding": "UTF-8",
"staging": {
"supported": true,
"prefix": "phabricator",
"uri": null
}
}
]
}
```
Note the `WHERE` clause in the query normalizes the URI into "<base-uri>", and the lookup succeeds.
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13435
Differential Revision: https://secure.phabricator.com/D20872
Summary:
Fixes T13433. Currently, "Login Screen Instructions" in "Auth" are shown only on the main login screen. If you enter a bad password or bad LDAP credential set and move to the flow-specific login failure screen (for example, "invalid password"), the instructions vanish.
Instead, persist them. There are reasonable cases where this is highly useful and the cases which spring to mind where this is possibly misleading are fairly easy to fix by making the instructions more specific.
Test Plan:
- Configured login instructions in "Auth".
- Viewed main login screen, saw instructions.
- Entered a bad username/password and a bad LDAP credential set, got kicked to workflow sub-pages and still saw instructions (previously: no instructions).
- Grepped for other callers to `buildProviderPageResponse()` to look for anything weird, came up empty.
Maniphest Tasks: T13433
Differential Revision: https://secure.phabricator.com/D20863
Summary: Ref T13425. When we render a diff between two source lines, highlight intraline changes.
Test Plan: Viewed a Jupyter notebook with a code diff in it, saw the changed subsequences in the line highlighted.
Maniphest Tasks: T13425
Differential Revision: https://secure.phabricator.com/D20851
Summary:
Depends on D20843. Ref T13425. Add very basic support for "Show Hidden Context", in the form of folding it behind an unclickable shield. This isn't ideal, but should be better than nothing.
Prepare for "intraline" diffs on content blocks.
Fix newline handling in Markdown sections in Jupyter notebooks.
Remove the word "visibile" from the codebase.
Test Plan: {F6898192}
Maniphest Tasks: T13425
Differential Revision: https://secure.phabricator.com/D20844
Summary:
Ref T13425. Currently, code inputs and all outputs are grouped into a single block. This is fine for display notebooks but not great for diffing notebooks.
Instead, split source code input into individual lines with one line per block, and each output into its own block.
This allows you to leave actual line-by-line inlines on source, and comment on outputs individually.
Test Plan: {F6888583}
Maniphest Tasks: T13425
Differential Revision: https://secure.phabricator.com/D20840
Summary:
Depends on D20835. Ref T13425. Ref T13414. When a document has a list of content blocks, we may not be able to diff it directly, but we can hash each block and then diff the hashes (internally "diff" also does approximately the same thing).
We could do this ourselves with slightly fewer layers of indirection, but: diff already exists; we already use it; we already have a bunch of abstractions on top of it; and it's likely much faster on large inputs than the best we can do in PHP.
Test Plan: {F6888169}
Maniphest Tasks: T13425, T13414
Differential Revision: https://secure.phabricator.com/D20836
Summary:
Depends on D20834. Ref T13425. After the change from "th" to "td" for accessibility, the algorithm picks which cells it should highlight slightly improperly (it picks too many cells since it can no longer find the line numbers).
Ideally, it would probably highlight //only// the source content, but there isn't an easy way to do this right now. Settle for an incremental improvement for the moment.
Test Plan: Hovered over line numbers, saw a more accurate highlight area.
Maniphest Tasks: T13425
Differential Revision: https://secure.phabricator.com/D20835
Summary:
Depends on D20832. Ref T13425. Emit Jupyter notebooks as diffable blocks with block keys.
No diffing or proper inlines yet.
Test Plan: {F6888058}
Maniphest Tasks: T13425
Differential Revision: https://secure.phabricator.com/D20833
Summary:
Depends on D20831. Ref T13425. As an escape hatch to get out of future DocumentEngine rendering behavior, provide a "View As.." option.
Now I can break DocumentEngine real bad and no one can complain.
Test Plan: Used "View As" to swap document engines for image files.
Maniphest Tasks: T13425
Differential Revision: https://secure.phabricator.com/D20832
Summary:
Depends on D20830. Ref T13425. Have the image engine elect into block rendering, then emit blocks.
This is rough (the blocks aren't actually diffed yet) but image diffs were already pretty rough so this is approximately a net improvement.
Test Plan: Viewed image diffs, saw nothing worse than before.
Maniphest Tasks: T13425
Differential Revision: https://secure.phabricator.com/D20831
Summary:
Fixes T13284. See that task for substantial discussion. There are currently two cases where we'll skip over commits which we should publish:
- if a branch is not permanent, then later made permanent; or
- in some cases, the first time we examine branches in a repository.
In both cases, this error is one-shot and things work correctly going forward. The root cause is conflation between the states "this ref currently permanent" and "this ref was permanent the last time we updated refs".
Separate these pieces of state and cover all these cases. Also introduce a "--rebuild" flag to fix the state of bad commits.
Test Plan:
See T13284 for the three major cases:
- initial import;
- push changes to a nonpermanent branch, update, then make it permanent;
- push chanegs to a nonpermanent branch, update, push more changes, then make it permanent.
Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13284
Differential Revision: https://secure.phabricator.com/D20829
Summary:
Ref T13410. We currently generate some less-than-ideal anchors in remarkup, but it's hard to change the algorithm without breaking stuff.
To mitigate this, allow `#xyz` to match any target on the page which begins with `xyz`. This means we can make anchors longer with no damage, and savvy users are free to shorten anchors to produce more presentation-friendly links.
Test Plan: Browsed to `#header-th`, was scrolled to `#header-three`, etc.
Maniphest Tasks: T13410
Differential Revision: https://secure.phabricator.com/D20820
Summary: Ref T13279. Fix some tabular stuff, draw areas better, make the "compose()" API more consistent, unfatal the demo chart, unfatal the project burndown, make the project chart do something roughly physical.
Test Plan: Looked at charts, saw fewer obvious horrors.
Subscribers: yelirekim
Maniphest Tasks: T13279
Differential Revision: https://secure.phabricator.com/D20817
Summary: Ref T13279. We currently draw a point on the chart for each datapoint, but this leads to many overlapping circles. Instead, aggregate the raw points into display points ("events") at the end.
Test Plan: Viewed a stacked area chart with many points, saw a more palatable number of drawn dots.
Subscribers: yelirekim
Maniphest Tasks: T13279
Differential Revision: https://secure.phabricator.com/D20814
Summary:
Ref T13413. In Chrome 77, workboard cards with titles that must break in the middle of words cause the browser to completely lock up.
Work around the major known instance of this by overriding the "break-word" behavior. This gives us worse rendering for tasks with very long "words" in their titles (they are truncated instead of broken) but fixes the freezing.
Once Chrome is fixed, this can be reverted.
Test Plan:
- Created a task named "MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM" on a workboard.
- Loaded the board in Chrome 77.
- Before: entire page locks up.
- After: smooth sailing, except the "MMMMMM..." is truncated.
Maniphest Tasks: T13413
Differential Revision: https://secure.phabricator.com/D20812
