Issues

• Support processing instructions <?target data>

  servo/html5ever#789 · Filter by author Delta-official opened on Sep 21, 2026

• Tree builder is O(n²) in nesting depth with no depth cap: 512 KB of <ul><li> takes 94 s

  servo/html5ever#788 · Filter by author mnaza opened on Sep 21, 2026

• rcdom: selectedcontent lookup reads self.data, option clone never runs

  servo/html5ever#776 · Filter by author hey-jj opened on Aug 21, 2026
  1

• ci: semver-check action doesn't run on PRs from same repo

  servo/html5ever#768 · Filter by author jschwe opened on Aug 6, 2026
  1

• Byte-accurate source positions in TreeSink

  servo/html5ever#734 · Filter by author OGKevin opened on Apr 2, 2026
  11

• selectedcontent issues

  servo/html5ever#712 · Filter by author untitaker opened on Jan 12, 2026
  3

• Implement faster tokenizer versions for DOMParser/innerHTML

  experimentperformance
  Feature

  servo/html5ever#703 · Filter by author simonwuelker opened on Dec 25, 2025

• the tree builder will modify the original doc's dom structure when encounters a foreign tag that it doesn't expect

  servo/html5ever#694 · Filter by author edenw97 opened on Nov 19, 2025

• Unify named character reference tokenizer of xml5ever and html5ever

  servo/html5ever#652 · Filter by author simonwuelker opened on Jul 27, 2025

• TokenSink trait forces interior mutability/RefCell usage

  servo/html5ever#642 · Filter by author LunNova opened on Jul 13, 2025
  2

• Plan for encoding/simpler prefetching in html5ever

  servo/html5ever#617 · Filter by author simonwuelker opened on Jun 11, 2025
  3

• Invalid HTML produces duplicated elements

  servo/html5ever#588 · Filter by author mohe2015 opened on Mar 27, 2025
  2

• parse_html adds unwanted tags like <html><head>...<body></html>

  servo/html5ever#583 · Filter by author qknight opened on Mar 13, 2025
  12

• xmlns-prefixed attribute on root element is lost

  servo/html5ever#569 · Filter by author jdm opened on Jan 12, 2025
  17

• RcDom issues in html2html example

  servo/html5ever#555 · Filter by author atjn opened on Sep 28, 2024
  3

• Profile-Guided Optimization (PGO) benchmark result

  servo/html5ever#545 · Filter by author zamazan4ik opened on Jun 21, 2024

• Are there callbacks when processing closed labels？

  servo/html5ever#543 · Filter by author ddx533534 opened on Jun 20, 2024
  5

• Malformed HTML parsed differently from browsers

  servo/html5ever#512 · Filter by author demurgos opened on Oct 1, 2023
  1

• HTML Entities cause split after the next character

  servo/html5ever#511 · Filter by author roelandvanbatenburg opened on Sep 29, 2023
  4

• Using html5ever in wasm package for an isomorphic html sanitizer

  servo/html5ever#497 · Filter by author dejang opened on May 6, 2023
  3

• html5ever::tokenizer::Tokenizer::process_token_and_continue needs to go away

  servo/html5ever#496 · Filter by author kevincox opened on Apr 11, 2023
  3

• Does it supply line&column numbers for the parsed tokens?

  question
  servo/html5ever#492 · Filter by author hoijui opened on Jan 17, 2023
  7

• Make async ergonomics nicer.

  servo/html5ever#478 · Filter by author b7-7b opened on Jul 6, 2022
  1

• bug: cargo doesn't know how to resolve dependencies for print-rcdom

  servo/html5ever#477 · Filter by author coolaj86 opened on Jun 10, 2022
  1

• Update xml5ever/README.md to reflect current API documentation

  servo/html5ever#452 · Filter by author hasezoey opened on Oct 10, 2021
  1