# Errors after update (OneSignalSDKWorker), but not using OneSignal

**URL:** <https://forum.mautic.org/t/errors-after-update-onesignalsdkworker-but-not-using-onesignal/8453>\
**Category:** Product Support\
**Created:** [May 9, 2017, 3:11pm UTC](https://forum.mautic.org/t/errors-after-update-onesignalsdkworker-but-not-using-onesignal/8453 "2017-05-09T15:11:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![VincentBib](https://avatars.discourse-cdn.com/v4/letter/v/ecc23a/32.png) [@VincentBib](https://forum.mautic.org/u/VincentBib)\
**Post date:** [May 9, 2017, 3:11pm UTC](https://forum.mautic.org/t/errors-after-update-onesignalsdkworker-but-not-using-onesignal/8453/1 "2017-05-09T15:11:24Z")

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Hello  
  
  
  
I’v updated to 2.8 and i get these error in the console.  
  
  
  
OneSignalSDKWorker.js:1 A bad HTTP response code (404) was received when fetching the script.  
  
OneSignalSDKWorker.js Failed to load resource: net::ERR\_INVALID\_RESPONSE  
  
ServiceWorkerHelper.ts:135 ServiceWorker registration TypeError: Failed to register a ServiceWorker: A bad HTTP response code (404) was received when fetching  
  
  
  
I’m not using web notifications, the OneSignal plugin is disabled. So these errors shouldn’t be showing?  
  
Is this a bug or should I edit something?

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<div class="post-metadata">

**Author:** ![VincentBib](https://avatars.discourse-cdn.com/v4/letter/v/ecc23a/32.png) [@VincentBib](https://forum.mautic.org/u/VincentBib)\
**Post date:** [May 9, 2017, 3:11pm UTC](https://forum.mautic.org/t/errors-after-update-onesignalsdkworker-but-not-using-onesignal/8453/2 "2017-05-09T15:11:24Z")

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Hello

I’v updated to 2.8 and i get these error in the console.

OneSignalSDKWorker.js:1 A bad HTTP response code (404) was received when fetching the script.  
OneSignalSDKWorker.js Failed to load resource: net::ERR\_INVALID\_RESPONSE  
ServiceWorkerHelper.ts:135 ServiceWorker registration TypeError: Failed to register a ServiceWorker: A bad HTTP response code (404) was received when fetching

I’m not using web notifications, the OneSignal plugin is disabled. So these errors shouldn’t be showing?  
Is this a bug or should I edit something?

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<div class="post-metadata">

**Author:** ![VincentBib](https://avatars.discourse-cdn.com/v4/letter/v/ecc23a/32.png) [@VincentBib](https://forum.mautic.org/u/VincentBib)\
**Post date:** [May 10, 2017, 9:13am UTC](https://forum.mautic.org/t/errors-after-update-onesignalsdkworker-but-not-using-onesignal/8453/3 "2017-05-10T09:13:33Z")

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Thanks for the quick response, I’ll do the patch.

The first options didn’t help, this gives another error.