Support for import(blobUrls) #61013

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1. strogonoff

   added

   feature requestIssues requesting new Node.js features.Issues requesting new Node.js features.

   on Dec 10, 2025
2. github-project-automation

   added this to Node.js feature requestson Dec 10, 2025
3. github-project-automation

   moved this to Awaiting Triage in Node.js feature requestson Dec 10, 2025
4. TejasSathe010 commented on Jan 13, 2026

   

   TejasSathe010

   on Jan 13, 2026 · Hidden as off-topic

   Last edited by TejasSathe010

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5. jimmywarting commented on Jan 27, 2026

   

   jimmywarting

   on Jan 27, 2026 · Hidden as off-topic

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6. jimmywarting commented on Jan 27, 2026

   

   jimmywarting

   on Jan 27, 2026

   Last edited by jimmywarting

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   for now, i got this userland solution going for me atm...

   import { isMainThread } from 'node:worker_threads'
   import { resolveObjectURL } from 'node:buffer'
   import module from 'node:module'
   
   /** @type {Map<string, Blob | PromiseWithResolvers<Blob>>} */
   const map = new Map()
   
   if (isMainThread) {
     const { port1, port2 } = new MessageChannel()
   
     module.registerHooks({
       resolve(specifier, context, nextResolve) {
         if (specifier.startsWith('blob:')) {
           const blob = resolveObjectURL(specifier)
   
           if (!['application/javascript', 'text/javascript'].includes(blob.type)) {
             throw new TypeError('Unsupported blob type: ' + blob.type + '. expected text/javascript MIME type.')
           }
   
           port1.postMessage({ blob, specifier })
         }
         return nextResolve(specifier, context, nextResolve)
       }
     })
   
     module.register(import.meta.url, {
       parentURL: import.meta.url,
       data: { port: port2 },
       transferList: [port2],
     })
   }
   
   async function resolve(specifier, context, nextResolve) {
     if (specifier.startsWith('blob:')) {
       return {
         url: specifier,
         shortCircuit: true,
         format: 'module',
       }
     }
   
     return nextResolve(specifier, context, nextResolve)
   }
   
   async function initialize({ port }) {
     port.addEventListener('message', evt => {
       const { blob, specifier } = evt.data
       const q = map.get(specifier)
       if (q) {
         q.resolve(blob)
       } else {
         map.set(specifier, blob)
       }
     })
     port.start()
   }
   
   async function load(specifier, context, nextLoad) {
     if (specifier.startsWith('blob:')) {
       let blob = map.get(specifier)
   
       if (!blob) {
         const q = Promise.withResolvers()
         map.set(specifier, q)
         blob = await q.promise
       }
   
       const source = await blob.text()
       map.delete(specifier)
   
       return {
         format: 'module',
         shortCircuit: true,
         source,
       }
     }
   
     return nextLoad(specifier, context, nextLoad)
   }
   
   export { initialize, load, resolve }

   Works for me:

     const blob = new Blob(
       [`console.log('Hello from objectURL!');`],
       { type: 'application/javascript' }
     );
     const blobURL = URL.createObjectURL(blob);
     import(blobURL)

   but not for disc blobs with openAsBlob

   👍React with 👍2Reacted by Tejas Sathe and Anton Strogonoff
7. github-actions commented on Jul 20, 2026

   

   github-actionsbot

   on Jul 20, 2026 – with GitHub Actions

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   This issue has been marked as stale due to 90 days of inactivity.
   It will be automatically closed in 30 days if no further activity occurs. If this is still relevant, please leave a comment or update it to keep it open.
8. github-actions

   added

   staleIssues and PRs marked stale due to inactivity and scheduled for automatic closure.Issues and PRs marked stale due to inactivity and scheduled for automatic closure.

   on Jul 20, 2026
9. strogonoff commented on Jul 23, 2026

   

   strogonoff

   on Jul 23, 2026

   Author

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   The workaround is quite involved, compared to simplicity of import(blobUrls) if it was implemented.
10. github-actions

    removed

    staleIssues and PRs marked stale due to inactivity and scheduled for automatic closure.Issues and PRs marked stale due to inactivity and scheduled for automatic closure.

    on Jul 24, 2026