Office Online Server - WOPI PutFile call delay on Chrome(Version 80.0.3987.149) even after close the file. RRS feed

  • Question

  • Hi there,

    I have implemented the WOPI Interface and it was working fine on all browser. Recently i noticed that on Chrome(Version 80.0.3987.149) the edit content is not written on the file immediately even after closing the file. It's working fine on Firefox and Microsoft Edge.

    1. I use iframe for editing and viewing the file.

    2. I use Windows server 2016

    3. I use Office Online Server Version 16.0.10338.20039

    I found an announcement from Microsoft :


    Is this a problem on Chrome (80.0.3987.149)?

    Any help on the issue is much appreciated.

    Thank you!


    Najrul Islam

    Sunday, March 29, 2020 1:23 PM

All replies

  • Hi Najrul

    This is a known issue where Chrome is deprecating Sync XHR on Oct 22 2019, affecting WAC's ability to unlock file and shutdown gracefully. At this time, no timeline when a fix will be ready. 

    You have three options 

    Per Chrome, https://www.chromestatus.com/feature/4664843055398912
    Disallow sync XHR in page dismissal - Chrome Platform Status
    Chrome now disallows synchronous XHR during page dismissal when the page is being navigated away from or closed by the user. This involves the following events (when fired on the path of page dismissal): before unload, unload, page hide, and visibility change.

    First option, a temporary opt-out is available via Origin Trial "Allow Sync XHR In Page Dismissal": https://developers.chrome.com/origintrials/#/trials/active

    Second option would be rollback to pre-Chrome 80.

    Third option would be to switch to use IE/Edge

    HungChun Yu (MSFT)

    Sunday, March 29, 2020 5:09 PM
  • Hi HungChun,

    Thanks for your reply. I there any way to know when a fix will be ready?

    Thank you.


    Najrul Islam

    Sunday, March 29, 2020 9:20 PM
  • Hi Najrul

    Microsoft Protocol Open Specification Support team is closely monitor this issue. As soon as the fix is released, either myself or someone from the team will post an update to this post. Make sure  to enable Alert Me checkbox.

    HungChun Yu (MSFT)

    Sunday, March 29, 2020 9:50 PM
  • Hi HungChun,

    Thanks for your support. Origin Trial "Allow Sync XHR In Page Dismissal" solution is working fine for me now.

    Looking forward to a permanent fix.

    Thank you.


    Najrul Islam

    Monday, March 30, 2020 11:26 AM
  • Any news on a permenant fix for this?
    Thursday, July 9, 2020 12:29 PM
  • No ETA yet.

    HungChun Yu (MSFT)

    Thursday, July 9, 2020 2:19 PM
  • Hi Najurl

    There are two OOS Updates.

    Update for Office Online Server: April 14, 2020

    Update for Office Online Server: July 14, 2020

    Do try them under Test Environment. Let us know if you encountered any issues.

    HungChun Yu (MSFT)

    Friday, August 21, 2020 2:31 PM
  • No ETA on the fix for Excel and Power Point. This forum will be retire as of Dec 15, 2020. If interested, please create an account under Microsoft Q & A, and follow the latest update under the tread WOPI unlock call | PutFile call delay - never gets triggered in chrome and latest edge browser - Microsoft Q&A

    HungChun Yu (MSFT)

    Friday, December 11, 2020 8:49 PM