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User profile for user: abstractlakx
abstractlakx Author
User level: Level 1
14 points

Safari: FetchEvent.respondWith received an error

I have a Macbook Air (2017) running macos Big Sur V11.4.

On Safari, when trying to go to outlook.com, the following error is shown and the page cannot be refreshed:


Safari can’t open the page “https://outlook.office.com/mail/“. The error is: “FetchEvent.respondWith received an error: Returned response is null.”

(WebKitServiceWorker:0)


The error does not persist in Incognito mode, Chrome or any other browser. The internet connection is all good - it’s not that.


Ive trawled the internet to no avail. Please let me know of any possible fixes.

MacBook Air

Posted on Jul 1, 2021 1:52 PM

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User profile for user: dominic23
dominic23
User level: Level 10
83,952 points

Posted on Jul 2, 2021 4:57 AM

On this Mac, site opens without any issue.




Go step by step and test.



1. Quit Safari, launch Safari holding the Shift key down.

    https://support.apple.com/en-us/HT203987


2. Startup in Safe Mode. https://support.apple.com/guide/mac-help/start-up-your-mac-in-safe-mode-mh21245/mac.  

    Quote:

    It also does a basic check of your startup disk, similar to using First Aid in Disk Utility. 

    And it deletes some system caches, including font caches and 

    the kernel cache, which are automatically created again as needed.

3. Clear History

    https://support.apple.com/guide/safari/clear-your-browsing-history-sfri47acf5d6/mac

    Please read the article before clearing history, 

    this is like a low level resetting of Safari without affecting passwords and bookmarks.


4. If Safari doesn't open a webpage or isn’t working as expected

    https://support.apple.com/en-us/HT204098

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Question marked as Top-ranking reply
User profile for user: dominic23
dominic23
User level: Level 10
83,952 points

Jul 2, 2021 4:57 AM in response to abstractlakx

On this Mac, site opens without any issue.




Go step by step and test.



1. Quit Safari, launch Safari holding the Shift key down.

    https://support.apple.com/en-us/HT203987


2. Startup in Safe Mode. https://support.apple.com/guide/mac-help/start-up-your-mac-in-safe-mode-mh21245/mac.  

    Quote:

    It also does a basic check of your startup disk, similar to using First Aid in Disk Utility. 

    And it deletes some system caches, including font caches and 

    the kernel cache, which are automatically created again as needed.

3. Clear History

    https://support.apple.com/guide/safari/clear-your-browsing-history-sfri47acf5d6/mac

    Please read the article before clearing history, 

    this is like a low level resetting of Safari without affecting passwords and bookmarks.


4. If Safari doesn't open a webpage or isn’t working as expected

    https://support.apple.com/en-us/HT204098

Reply

Safari: FetchEvent.respondWith received an error

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