Merge branch 'main' into additional-tc53-feedback

Author: andreubotella

.github/workflows/lintyMcLintface.yml

@@ -6,7 +6,6 @@ on:
   workflow_dispatch:
 
 jobs:
-
   bikeshed:
     runs-on: ubuntu-latest
 
@@ -17,14 +16,16 @@ jobs:
       - name: setup python
         uses: actions/setup-python@v5
         with:
-          python-version: '3.x'
+          python-version: "3.x"
 
       - name: install bikeshed
         run: |
+          sudo apt-get update
+          sudo apt-get install libxml++2.6-dev libxslt1-dev
           python -m pip install --upgrade pip
           pip install bikeshed
           bikeshed update
 
       - name: lint
         run: |
-          bikeshed spec index.bs /dev/null
+          bikeshed spec index.bs /dev/null

index.bs

@@ -61,9 +61,9 @@ Conformance {#conformance}
 
 A conforming implementation of this Standard shall provide the interfaces and properties listed in this specification, according to their definition in the corresponding W3C or WHATWG standard. A conforming implementation shall also conform to ECMA-262.
 
-Runtime-specific extensions to any Web Platform API may be implemented by conforming runtimes. Such extensions shall be defined so that their use neither contradicts, nor causes the non-conformance of, normative functionality of any Web Platform API. It is important to carefully consider use of such extensions, as it reduces interoperability and portability of code across runtimes.
+Runtime-specific extensions to any Web Platform API may be implemented by conforming runtimes. Such extensions shall be defined so that their use neither contradicts, nor causes the non-conformance of, normative functionality of any Web Platform API. Extending API surface, even without modifying existing API behaviours, should be avoided as it can reduce interoperability and portability of code across runtimes.
 
-This Standard does not prohibit implementing additional Web Platform APIs beyond those listed here.
+Runtimes may implement Web Platform APIs beyond those listed in this Standard.
 
 Note: For example, the {{Performance}} API could be extended with additional methods or properties beyond those defined in the [[HR-TIME]] specifications, such as those defined in the [[PERFORMANCE-TIMELINE]] or [[USER-TIMING]] specifications.