Commit Graph

37338 Commits

Author SHA1 Message Date
Andrew Ozz
765272e3e5 Editor:
- Fix keeping text selection and scroll position when there are embeds from URL.
- Add editor setting to disable keeping selection and scroll position.
- Remove dependency on Underscore.js.
- Fix error in the Text widget editor.

Props biskobe.
Fixes #42059, see #40854.
Built from https://develop.svn.wordpress.org/trunk@41783


git-svn-id: http://core.svn.wordpress.org/trunk@41617 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-06 17:44:48 +00:00
Sergey Biryukov
806c464e4b Login and Registration: Prevent PHP warnings when POSTing to wp-login.php with an array as a user_login or user_email field.
Props menakas, johnjamesjacoby.
Fixes #40888.
Built from https://develop.svn.wordpress.org/trunk@41782


git-svn-id: http://core.svn.wordpress.org/trunk@41616 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-06 17:37:47 +00:00
Joe McGill
53a58e35b7 Media: Fix MEJS error when removing a media player.
This fixes a bug introduced by the upgrade to MediaElement.js, where code 
calling `wp.media.mixin.removePlayer()` would result in a JS error.

Props rafa8626, afercia.
Fixes #41787.

Built from https://develop.svn.wordpress.org/trunk@41781


git-svn-id: http://core.svn.wordpress.org/trunk@41615 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-06 16:31:54 +00:00
Sergey Biryukov
0b39f4c99d Twenty Seventeen: Add missing @return tag for twentyseventeen_video_controls().
Props ndoublehwp, audrasjb.
Fixes #41927.
Built from https://develop.svn.wordpress.org/trunk@41780


git-svn-id: http://core.svn.wordpress.org/trunk@41614 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-06 01:35:47 +00:00
Weston Ruter
77a4574b96 Widgets: Apply the same container-constraining embed resizing logic from the Video widget to embeds in the Text widget.
See #40854, #39994.

Built from https://develop.svn.wordpress.org/trunk@41779


git-svn-id: http://core.svn.wordpress.org/trunk@41613 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-06 00:39:52 +00:00
Weston Ruter
b6297d1866 Customize: Prevent color default control type from overriding template for ColorControl.
Amends [41771].
See #30738.

Built from https://develop.svn.wordpress.org/trunk@41778


git-svn-id: http://core.svn.wordpress.org/trunk@41612 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 14:36:57 +00:00
Weston Ruter
766db88eb9 Post WordPress 4.9 Beta 1 version bump
Built from https://develop.svn.wordpress.org/trunk@41777


git-svn-id: http://core.svn.wordpress.org/trunk@41611 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 05:54:52 +00:00
Weston Ruter
6a899cf45c WordPress 4.9 Beta 1.
Built from https://develop.svn.wordpress.org/trunk@41776


git-svn-id: http://core.svn.wordpress.org/trunk@41610 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 05:06:47 +00:00
Weston Ruter
b5f75fc315 File Editors: Fix JSHint error after [41774].
See #31779.

Built from https://develop.svn.wordpress.org/trunk@41775


git-svn-id: http://core.svn.wordpress.org/trunk@41609 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 04:43:47 +00:00
Helen Hou-Sandí
b698881469 File Editors: Introduce an interstitial warning upon first visit.
This is an effort to provide a speed bump before heading into something potentially destructive and some education for users on better alternatives, even as we make the file editors safer to use. Each user, including existing users, will be shown a one-time dismissible modal warning on their first visit to each of the theme and plugin file editors.

Copy tweaks to come.

props michelleweber, Ipstenu, melchoyce, adamsilverstein, westonruter, toddnestor, aryamaaru, ZaneMatthew, cliffseal, helen.
fixes #31779.

Built from https://develop.svn.wordpress.org/trunk@41774


git-svn-id: http://core.svn.wordpress.org/trunk@41608 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 04:25:48 +00:00
Weston Ruter
7f7dffafbb Customize: Fix QUnit tests after failures introduced in [41768].
Props bpayton.
Fixes #40104.

Built from https://develop.svn.wordpress.org/trunk@41773


git-svn-id: http://core.svn.wordpress.org/trunk@41607 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 04:23:48 +00:00
Weston Ruter
48209c926f Widgets: Remove "Replace Gallery" button from Gallery widget since redundant with "Edit Gallery".
Props Presskopp, juhise, melchoyce.
See #41914.
Fixes #41994.

Built from https://develop.svn.wordpress.org/trunk@41772


git-svn-id: http://core.svn.wordpress.org/trunk@41606 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 03:13:49 +00:00
Weston Ruter
9d6134a88c Customize: Add default control template for standard input types.
Re-use default template instead of introducing custom one for the Discard Changes button.

See #30738.

Built from https://develop.svn.wordpress.org/trunk@41771


git-svn-id: http://core.svn.wordpress.org/trunk@41605 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 02:56:47 +00:00
Sergey Biryukov
561bde29c7 Administration: Add .protected-post-excerpt class to password-protected post excerpts in the posts list.
Props Soean, mp518, slaFFik, SergeyBiryukov.
Fixes #41426.
Built from https://develop.svn.wordpress.org/trunk@41770


git-svn-id: http://core.svn.wordpress.org/trunk@41604 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 02:50:46 +00:00
Sergey Biryukov
2e8615f21e REST API: After [41760], use correct query variable in WP_Term_Query::parse_orderby() when 'include_slugs' => 'slug__in' is passed.
See #40826.
Built from https://develop.svn.wordpress.org/trunk@41769


git-svn-id: http://core.svn.wordpress.org/trunk@41603 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 02:28:47 +00:00
Weston Ruter
275f4713a5 Customize: Improve the menu creation flow.
Often, folks run into two issues when they create new menus: they click "Add a Menu" thinking it will add a new page to their menu, or they forget to assign their new menu to a location, and then wonder why it doesn't show up on their site.

This commit rearranges the order of items in the menu panel, and updates the flow for creating a menu by breaking it up into steps. Additionally, more help text has been added to guide people through the process of creating a menu.

Also adds default `type` lookups for Panel and Section instances. See #30741.

Props bpayton, obenland, westonruter, celloexpessions, afercia, melchoyce, zoonini, michelleweber.
Fixes #40104.

Built from https://develop.svn.wordpress.org/trunk@41768


git-svn-id: http://core.svn.wordpress.org/trunk@41602 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 02:22:49 +00:00
Sergey Biryukov
a47a253e90 Taxonomy: After [40903], restore documentation for wp_dropdown_categories() arguments that are different from the defaults in WP_Term_Query::__construct().
Fixes #41058.
Built from https://develop.svn.wordpress.org/trunk@41767


git-svn-id: http://core.svn.wordpress.org/trunk@41601 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 01:57:48 +00:00
Sergey Biryukov
2f0f46cb84 Menus: Introduce wp_get_nav_menu_name() to retrieve the name of a navigation menu as set in the admin.
Props markoheijnen, christophherr, SpencerFinnell, wojtek.szkutnik, sagarprajapati, welcher, SergeyBiryukov.
Fixes #13910.
Built from https://develop.svn.wordpress.org/trunk@41766


git-svn-id: http://core.svn.wordpress.org/trunk@41600 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 01:38:46 +00:00
Konstantin Obenland
2bd80ac24f Widgets: Continue to use shortcode for some embeds
Renders YouTube and Vimeo embeds through WordPress' video shortcode.

See #42039.

Built from https://develop.svn.wordpress.org/trunk@41765


git-svn-id: http://core.svn.wordpress.org/trunk@41599 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 01:29:46 +00:00
K. Adam White
2914ba6db8 Widgets: Fix jshint error in media widget.
Built from https://develop.svn.wordpress.org/trunk@41764


git-svn-id: http://core.svn.wordpress.org/trunk@41598 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 00:58:48 +00:00
Sergey Biryukov
33beafaf02 Posts, Post Types: Introduce page_attributes_misc_attributes action that fires before the help hint text in the 'Page Attributes' meta box.
Props markcallen, MikeHansenMe.
Fixes #34034.
Built from https://develop.svn.wordpress.org/trunk@41763


git-svn-id: http://core.svn.wordpress.org/trunk@41597 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 00:55:47 +00:00
Sergey Biryukov
2c5a378291 Twenty Fourteen: Add missing singular placeholder in comments.php.
Uses the recommended pattern for better compatibility with languages that use the singular form for other numbers. Also adds translator comments.

Props bplv, xkon.
See #39660.
Built from https://develop.svn.wordpress.org/trunk@41762


git-svn-id: http://core.svn.wordpress.org/trunk@41596 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 00:42:46 +00:00
Sergey Biryukov
0a2c1d7749 Twenty Fifteen: Add missing singular placeholder in comments.php.
Uses the recommended pattern for better compatibility with languages that use the singular form for other numbers. Also adds translator comments.

Props bplv, xkon.
See #39660.
Built from https://develop.svn.wordpress.org/trunk@41761


git-svn-id: http://core.svn.wordpress.org/trunk@41595 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 00:41:46 +00:00
K. Adam White
30827e4a4f REST API: Support ordering response collection by listed slugs.
Adds an "include_slug" orderby value for REST API collections to permit returning a collection filtered by slugs in the same order in which those slugs are specified.
Previously, the order of slugs provided with the ?slug query parameter had no effect on the order of the returned records.

Props wonderboymusic, ocean90, boonebgorges.
Fixes #40826.


Built from https://develop.svn.wordpress.org/trunk@41760


git-svn-id: http://core.svn.wordpress.org/trunk@41594 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 00:37:47 +00:00
Konstantin Obenland
5fe4acb1f5 Widgets: Allow oEmbeds in video widget.
Opens up video embeds to all supported video oEmbed providers.

Props westonruter.
See #42039.

Built from https://develop.svn.wordpress.org/trunk@41759


git-svn-id: http://core.svn.wordpress.org/trunk@41593 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 00:22:47 +00:00
K. Adam White
704fb3900b REST API: Support objects in settings schema.
Enables register_setting to accept an object as its schema value, allowing settings to accept non-scalar values through the REST API.
This whitelists the added type in the settings controller, and passes properties from argument registration into the validation functions.

Props joehoyle.
See #38583.


Built from https://develop.svn.wordpress.org/trunk@41758


git-svn-id: http://core.svn.wordpress.org/trunk@41592 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 00:19:49 +00:00
Sergey Biryukov
9319a9cec9 Bundled Themes: Restore double line breaks before media queries.
See #40138.
Built from https://develop.svn.wordpress.org/trunk@41757


git-svn-id: http://core.svn.wordpress.org/trunk@41591 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 00:02:48 +00:00
Sergey Biryukov
203b275658 Bundled Themes: Change tag cloud format to a list (<ul>) for better semantics and accessibility.
List markup allows screen reader users to know in advance how many tags are within the list.

Props xkon, davidakennedy.
Fixes #40138.
Built from https://develop.svn.wordpress.org/trunk@41756


git-svn-id: http://core.svn.wordpress.org/trunk@41590 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 23:53:47 +00:00
Gary Pendergast
37aa531cd4 Plugins: Tweak the plugin icons added in [41695].
- Remove plugins icons from the plugin list table, as there were performance issues loading the icons when the site had lots of plugins.
- Depending on which icons the plugin has uploaded, prefer them in this order: `svg`, `128x128`, `256x256`.
- Improve the style of the fallback icon for plugins that don't have an icon defined.

Props Travel_girl, danieltj, afercia, karmatosed,hugobaeta, empireoflight, brentjett, melchoyce, pento.
Fixes #30186.


Built from https://develop.svn.wordpress.org/trunk@41755


git-svn-id: http://core.svn.wordpress.org/trunk@41589 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 23:43:46 +00:00
Sergey Biryukov
821004b1a6 Twenty Seventeen: After [41703], adjust RTL styles for tag cloud widget.
Props davidakennedy.
Fixes #40184.
Built from https://develop.svn.wordpress.org/trunk@41754


git-svn-id: http://core.svn.wordpress.org/trunk@41588 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 23:35:50 +00:00
John Blackbourn
50948669eb Users: Revert [41613], [41614], and [41623] as this feature needs some more work.
See #38741

Built from https://develop.svn.wordpress.org/trunk@41753


git-svn-id: http://core.svn.wordpress.org/trunk@41587 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 22:17:46 +00:00
Adam Silverstein
adb8f0161b Build: Webpack instead of Browserify as JavaScript bundler.
Use Webpack as our bundler of choice, enabling improved JavaScript build chain capabilities.

Props aduth, netweb, kadamwhite, schlessera.
Fixes #40894. 

Built from https://develop.svn.wordpress.org/trunk@41752


git-svn-id: http://core.svn.wordpress.org/trunk@41586 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 21:02:23 +00:00
Adam Silverstein
0a431ea356 Revert "Add wp.hooks - JavaScript actions and filters."
Revert `wp.hooks` for now as we continue to refine and test. 

Reverts [41375].

Built from https://develop.svn.wordpress.org/trunk@41751


git-svn-id: http://core.svn.wordpress.org/trunk@41585 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 20:25:49 +00:00
Weston Ruter
f5bc1d1f52 Customize: Allow controls to be created with pre-instantiated Setting object(s), or even with plain Value object(s).
* Allow passing settings in keyed object (e.g. `settings: { default: 'id' }  ), or as an array (e.g. `settings: [ 'id' ]`) with first being default; again, `Setting`/`Value` objects may be supplied instead of IDs.
* Allow a single setting to be supplied with just a single `setting` param, either a string or a `Setting`/`Value` object.
* Update `changeset_status` and `scheduled_changeset_date` to be added dynamically with JS and simply passing of `api.state()` instances as `setting`.
* Introduce a `data-customize-setting-key-link` attribute which, unlike `data-customize-setting-link`, allows passing the setting key (e.g. `default`) as opposed to the setting ID.
* Allow `WP_Customize_Control::get_link()` to return `data-customize-setting-key-link` when setting is not registered.
* Eliminate `default_value` from `WP_Customize_Date_Time_Control` since now comes from supplied `Value`.
* Export status choices as `wp.customize.settings.changeset.statusChoices`.
* Export date and time formats as `wp.customize.settings.dateFormat` and `wp.customize.settings.timeFormat` respectively.

Props westonruter, sayedwp.
See #39896, #30738, #30741, #42083.
Fixes #37964, #36167.

Built from https://develop.svn.wordpress.org/trunk@41750


git-svn-id: http://core.svn.wordpress.org/trunk@41584 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 20:02:49 +00:00
Sergey Biryukov
08b5714221 Customize: Improve the wording for Site Icon control intro.
Props michelleweber, dlh, menakas, melchoyce.
Fixes #40430.
Built from https://develop.svn.wordpress.org/trunk@41749


git-svn-id: http://core.svn.wordpress.org/trunk@41583 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 19:59:48 +00:00
John Blackbourn
be693a6181 Build/Test tools: Remove PHP 7.2 from the allowed failures list on Travis CI.
Fixes #40109

Built from https://develop.svn.wordpress.org/trunk@41748


git-svn-id: http://core.svn.wordpress.org/trunk@41582 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 19:54:48 +00:00
Sergey Biryukov
dd4ea3c038 Customize: Improve the wording for Header Image control intro.
Props michelleweber, menakas, jcc9873, melchoyce.
Fixes #40431.
Built from https://develop.svn.wordpress.org/trunk@41747


git-svn-id: http://core.svn.wordpress.org/trunk@41581 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 19:35:47 +00:00
Mike Schroder
e8a1a7ab2b Media: Store video creation date in meta.
When able to be parsed, store the created date for a video file from meta,
since this is useful separately from the dates on the file itself.

Introduces `wp_get_media_creation_timestamp()` to read the timestamp from
getID3 and a `wp_read_video_metadata` filter analogous to
`wp_read_image_metadata`.

Fixes #35218.
Props stevegrunwell, joemcgill, desrosj, blobfolio, mikeschroder.
Built from https://develop.svn.wordpress.org/trunk@41746


git-svn-id: http://core.svn.wordpress.org/trunk@41580 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 19:32:47 +00:00
Adam Silverstein
eb3b3fec1d Security: Rename new wp.sanitize.sanitizeText to stripTagsAndEncodeText.'
Improve function naming: this function strips tags from a string and also encodes any HTML entities.

Props ocean90.

Fixes #40635.

Built from https://develop.svn.wordpress.org/trunk@41745


git-svn-id: http://core.svn.wordpress.org/trunk@41579 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 18:58:47 +00:00
K. Adam White
37ec288f71 REST API: Add _fields parameter to selectively include fields in response JSON.
Allows REST API consumers to specify the specific fields needed in their application code, whitelisting those fields and omitting all others from the returned JSON response object.
This permits applications that only need for example the ID and title of posts to avoid having to transfer the entire rendered post content over the wire alongside the desired fields.
While this whitelisting has no affect on the queries run when preparing the response, it can yield significant reductions in the bandwidth required to transfer a response payload for simple applications.

Props adamsilverstein, TimothyBlynJacobs, svrooij.
Fixes #38131.


Built from https://develop.svn.wordpress.org/trunk@41744


git-svn-id: http://core.svn.wordpress.org/trunk@41578 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 18:46:38 +00:00
Jeremy Felt
018a94d5f5 Multisite: Use get_site_by() in get_id_from_blogname().
Fixes #42091.

Built from https://develop.svn.wordpress.org/trunk@41743


git-svn-id: http://core.svn.wordpress.org/trunk@41577 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 18:45:52 +00:00
Sergey Biryukov
0f0ab0e8ef Media: Improve the preview of transparent images in Edit Image modal by using CSS3 to show a checkered background.
Props powerzilly, stevepuddick.
Fixes #41966. See #41948.
Built from https://develop.svn.wordpress.org/trunk@41742


git-svn-id: http://core.svn.wordpress.org/trunk@41576 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 18:35:46 +00:00
John Blackbourn
fbd44ee554 Security: Add a referrer policy header to the admin and login screens.
This sets a referrer policy of `same-origin` which adds hardening by preventing a referrer being sent from the admin area or login screens to other origins. This helps prevent unwanted exposure of potentially sensitive information that may be contained within URLs.

This change introduces a new filter, `admin_referrer_policy`, for filtering the referrer policy header value. The header can be disabled if necessary by removing the `wp_admin_headers` action from the `admin_init` and `login_init` hooks.

Props joostdevalk
Fixes #42036

Built from https://develop.svn.wordpress.org/trunk@41741


git-svn-id: http://core.svn.wordpress.org/trunk@41575 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 18:25:46 +00:00
Weston Ruter
c03b283f37 Customize: Improve accessibility of markup for base WP_Customize_Control and WP_Customize_Nav_Menu_Control with proper use of label elements and inclusion of aria-describedby.
See #33085.
Props valendesigns, afercia, westonruter.

Built from https://develop.svn.wordpress.org/trunk@41740


git-svn-id: http://core.svn.wordpress.org/trunk@41574 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 18:12:46 +00:00
Weston Ruter
55ba2f5e53 Customize: Fix theme details modal by updating logic in getPreviousTheme and getNextTheme to not rely on DOM traversal and manually constructing control IDs.
Amends [41726].
See #42083, #37661.

Built from https://develop.svn.wordpress.org/trunk@41739


git-svn-id: http://core.svn.wordpress.org/trunk@41573 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 16:49:46 +00:00
Jeremy Felt
f646f0aa47 Multisite: Only query for one site in domain_exists().
`get_sites()` queries for a maximum of 100 records by default. In `domain_exists()`, we only use one.

A previous commit, [41736], has this same commit message but applies to `get_blog_id_from_url()` and #42073 instead.

Props danieltj, spacedmonkey.
Fixes #42072.

Built from https://develop.svn.wordpress.org/trunk@41738


git-svn-id: http://core.svn.wordpress.org/trunk@41572 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 16:26:45 +00:00
K. Adam White
fe29c9c881 REST API: Return 409 status when attempting to create an existing term.
Fixes an issue where submitting a well-formed request to create a term inappropriately returns a 500 error status if that term already exists.
HTTP 5xx error codes should be reserved for unexpected server errors, so "409 Conflict" is a more appropriate response.

Props alibasheer, guzzilar, shooper.
Fixes #41370.


Built from https://develop.svn.wordpress.org/trunk@41737


git-svn-id: http://core.svn.wordpress.org/trunk@41571 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 16:24:46 +00:00
Jeremy Felt
19e9de3367 Multisite: Only query for one site in domain_exists().
`get_sites()` queries for a maximum of 100 records by default. In `domain_exists()`, we only use one.

Props danieltj, spacedmonkey.
Fixes #42072.

Built from https://develop.svn.wordpress.org/trunk@41736


git-svn-id: http://core.svn.wordpress.org/trunk@41570 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 16:11:51 +00:00
John Blackbourn
090dfae53e REST API: Avoid counting an uncountable type when checking read permissions for comment posts.
This avoids deprecated notices from showing in PHP 7.2 and above.

Props ayeshrajans
Fixes #41457

Built from https://develop.svn.wordpress.org/trunk@41735


git-svn-id: http://core.svn.wordpress.org/trunk@41569 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 15:38:49 +00:00
Sergey Biryukov
54ff178923 I18N: Make sure wp_dropdown_languages() does not print out empty name and id attributes.
Props johnjamesjacoby, afercia.
Fixes #40829.
Built from https://develop.svn.wordpress.org/trunk@41734


git-svn-id: http://core.svn.wordpress.org/trunk@41568 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-04 15:23:46 +00:00