Title: HTML API Debugger
Author: Jon Surrell
Published: 7. Juni 2024
Last modified: 7. August 2025
---
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# HTML API Debugger
Von [Jon Surrell](https://profiles.wordpress.org/jonsurrell/)
[Herunterladen](https://downloads.wordpress.org/plugin/html-api-debugger.2.8.zip)
[Live Preview](https://de-at.wordpress.org/plugins/html-api-debugger/?preview=1)
* [Details](https://de-at.wordpress.org/plugins/html-api-debugger/#description)
* [Rezensionen](https://de-at.wordpress.org/plugins/html-api-debugger/#reviews)
* [Entwicklung](https://de-at.wordpress.org/plugins/html-api-debugger/#developers)
[Support](https://wordpress.org/support/plugin/html-api-debugger/)
## Beschreibung
Add a WP Admin page for debugging the HTML API.
### Contributing
Please file issues and pull requests on the [GitHub repository](https://github.com/sirreal/html-api-debugger).
## Screenshots
* [[
* [[
## Rezensionen
There are no reviews for this plugin.
## Mitwirkende & Entwickler
„HTML API Debugger“ ist Open-Source-Software. Folgende Menschen haben an diesem
Plugin mitgewirkt:
Mitwirkende
* [ Jon Surrell ](https://profiles.wordpress.org/jonsurrell/)
* [ Bernie Reiter ](https://profiles.wordpress.org/bernhard-reiter/)
[Übersetze „HTML API Debugger“ in deine Sprache.](https://translate.wordpress.org/projects/wp-plugins/html-api-debugger)
### Interessiert an der Entwicklung?
[Durchstöbere den Code](https://plugins.trac.wordpress.org/browser/html-api-debugger/),
sieh dir das [SVN Repository](https://plugins.svn.wordpress.org/html-api-debugger/)
an oder abonniere das [Entwicklungsprotokoll](https://plugins.trac.wordpress.org/log/html-api-debugger/)
per [RSS](https://plugins.trac.wordpress.org/log/html-api-debugger/?limit=100&mode=stop_on_copy&format=rss).
## Änderungsprotokoll
#### 2.8
* Silence _doing_it_wrong bookmark notices when providing from HTML context.
* Adjust doctype info to account for typo fix.
#### 2.7
* Preserve attribute value line breaks in tree views.
* Prevent plugin module from being enqueued on all pages.
#### 2.6
* Handle null bytes in selectors and context HTML.
* Fix another error when using WordPress 6.7.
#### 2.5
* Fix a crash when using WordPress 6.7.
#### 2.4
* Add experimental support for HTML API selectors.
* Display document title.
#### 2.3
* Inline tree copy buttons.
* Add line breaks to overflowing attribute names and values.
#### 2.2
* Drop support for WordPress 6.6.
* Drop basic fragment parsing and quirks mode support.
* Add advanced context and fragment parsing when supported (WordPress 6.8+).
* Add functionality to copy textual representations of the generated trees.
#### 2.1
* Add text-wrap styling fallback for unsupported browsers.
#### 2.0
* Add ability to replay token processing.
* Fix quirks mode fragment parsing.
* Drop support for WordPress 6.5.
#### 1.9
* Update WordPress Playground links to use current query args.
* Improve span highlighting reliability.
* Fix an uncuaght exception on undefined clearSpan function.
#### 1.8
* Highlight spans in HTML input on hover.
* Fix a bug in tree construction with self-closing tags in foreign content.
#### 1.7
* Update DOM tree when HTML document is mutated.
* Fix deprecation notice on WordPress 6.7.
* Register script modules unconditionally.
#### 1.6
* Replace TABLE based layout with CSS grid.
* Fix a crash on meta tags with a content attribute.
* Display namespace on tag closers.
* Display normalized HTML when supported.
#### 1.5
* Improve initial rendering and reduce layout shift.
* Allow copying playground links to latest, beta, and nightly versions.
* Allow copying playground links to specific wordpress-develop PRs.
#### 1.4
* Show invisible characters in the tree in attribute names, values, and tag names.
* Handle DOCTYPE nodes.
* Prevent newlines from automatically being added to the HTML input.
* Use async event directives if available.
* Handle DOCTYPE tokens and display information about quirks-mode.
#### 1.3
* Replace wp-api-fetch script dependency with native fetch.
* Improve error messages.
* Display templates consistently between DOM and HTML API trees.
* Use „qualified“ names. SVG and MathML tags and attributes have some specialized
casing.
#### 1.2
* Handle CDATA sections.
* Use WordPress Script Modules API for all modules.
#### 1.1
* Print tag namespaces.
#### 1.0
* Prevent flash of „�“ replacing null-byte in input on initial render.
* Support HTML API quirks mode.
* Support for full HTML processor.
* Configurable hover information on nodes: depth and breadcrumbs or insertion mode.
#### 0.9
* Fix a bug where „}“ was replaced as an invisible character.
* Add a quirks mode toggle that allows changing the DOCTYPE used.
#### 0.8
* Show invisible characters in processed HTML spans.
* Fix null-byte rendering in the initial page render.
#### 0.7
* Fix some issues where parsing errors could crash the client.
#### 0.6
* Add better unsupported error messages when possible. (WordPress >= 6.7)
#### 0.5
* Use regular REST API result response shape.
* Display text content of „atomic“ HTML API nodes like TEXTAREA or XMP.
#### 0.4
* Improve debugger visibility controls.
* Add handling for real/virtual nodes.
#### 0.3
* Add button to copy instant playground link.
#### 0.2
* Remove redundant module.
* Rearrange debugging panes.
* Add option to show invisible characters.
#### 0.1
* Initial release.
## Meta
* Version **2.8**
* Last updated **vor 8 Monaten**
* Active installations **Weniger als 10**
* WordPress version ** 6.7 oder höher **
* Tested up to **6.8.5**
* Language
* [English (US)](https://wordpress.org/plugins/html-api-debugger/)
* Tags
* [debug](https://de-at.wordpress.org/plugins/tags/debug/)[development](https://de-at.wordpress.org/plugins/tags/development/)
* [Erweiterte Ansicht](https://de-at.wordpress.org/plugins/html-api-debugger/advanced/)
## Bewertungen
No reviews have been submitted yet.
[Your review](https://wordpress.org/support/plugin/html-api-debugger/reviews/#new-post)
[See all reviews](https://wordpress.org/support/plugin/html-api-debugger/reviews/)
## Mitwirkende
* [ Jon Surrell ](https://profiles.wordpress.org/jonsurrell/)
* [ Bernie Reiter ](https://profiles.wordpress.org/bernhard-reiter/)
## Support
Möchtest du etwas sagen? Brauchst du Unterstützung?
[Supportforum anzeigen](https://wordpress.org/support/plugin/html-api-debugger/)