Problem with %20--use-spdy=off%20--disable-http2

Chuck Reynolds 21 Reputation points

When I click on a hyperlink imbedded in an email (Outlook), the string "%20--use-spdy=off%20--disable-http2" gets added to the web address, and the address does not open properly. I can get to the address by deleting the "%20--use-spdy=off%20--disable-http2" string, but that's a hassle. I use Chrome as my default browser.

Outlook Management
Outlook Management
Outlook: A family of Microsoft email and calendar products.Management: The act or process of organizing, handling, directing or controlling something.
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Accepted answer
  1. JeffYang-MSFT 6,241 Reputation points Microsoft Vendor

    Hi @Chuck Reynolds ,


    Does this issue only happen to the Chrome browser? In order to further confirm your issue, I would suggest you to try opening the same link via other browsers such as Microsoft Edge to see if the issue has any difference there.

    I tried search a lot about the "use-spdy=off" within your issue and found that much more similar issues point to the SPDY protocol in Google Chrome. So, personally, I would suggest you to repair your Chrome install and try disabling the SPDY in Google Chrome to see if the issue could be resolved.
    For more information, please check:
    How to disable SPDY in Google Chrome
    --use-spdy%3Doff & --disable-http2
    (Note: Since the web sites are not hosted by Microsoft, the links may change without notice. Microsoft does not guarantee the accuracy of this information.)

    Hope this can be helpful.

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2 additional answers

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  1. David Jose 1 Reputation point

    Just ran into this same problem today with Excel and spent the last 4 hours trying to figure out what the hell was broken.

    What solved the problem for me was a registry edit to disable the http2 protocol.

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  2. Dave 1 Reputation point

    This is caused by an old linking of the standard app. Just assign another browser as standard app for browser and re-assign Chrome again. It's as simple as that. If it's not working - just reinstall Chrome and apply the standard app again.

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