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xmlns attribute not present in HTMLAttributes type #16079

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#16080
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xmlns attribute not present in HTMLAttributes type#16079
Bug
#16080
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good first issueA small, encapsulated issue, ideal for a new contributor to Svelte to tackle.types / typescript
@christophsanz

Description

@christophsanz
christophsanz
opened on Jun 4, 2025
Contributor

Describe the bug

When using <svelte:element> with an xmlns attribute, we get a type error, even though the attribute should be allowed.

https://www.w3schools.com/xml/xml_namespaces.asp

Reproduction

Create a <svelte:element this="div"> that is not a svg element, and add the xmlns attribute to it and notice the type error.

Logs


    
      
      
    
  


System Info


System:
    OS: Windows 11 10.0.22631
    CPU: (12) x64 12th Gen Intel(R) Core(TM) i7-1255U
    Memory: 11.70 GB / 31.58 GB
  Binaries:
    Node: 22.11.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.19 - ~\AppData\Roaming\npm\yarn.CMD
    npm: 10.9.0 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Edge: Chromium (127.0.2651.86)
    Internet Explorer: 11.0.22621.1

    
      
      
    
  


Severity


annoyance
Activity
dummdidumm
added the
Bug
issue type on Jun 4, 2025
dummdidumm
added 
good first issueA small, encapsulated issue, ideal for a new contributor to Svelte to tackle.
 
types / typescript
 on Jun 4, 2025
dummdidumm
dummdidumm commented on Jun 4, 2025 
@dummdidumm
dummdidumm
on Jun 4, 2025
Member
Should be an easy fix within elements.d.ts
christophsanz
mentioned this on Jun 4, 2025
Rich-Harris
closed this as completedin #16080on Jun 6, 2025
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        `xmlns` attribute not present in HTMLAttributes type · Issue #16079 · sveltejs/svelte