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"Bad request -header field too long" error

Anonymous
2020-08-12T12:59:41+00:00

Why do I see this? It's fixed by removing cookies for this tenant, but users wouldn't know that and it looks like the intranet is down, so it causes unnecessary support requests. Is Sharepoint's cookie handling really that bad?.

Microsoft 365 and Office | SharePoint | For business | Windows

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Anonymous
    2020-08-12T14:09:42+00:00

    Hi webbrewers3,

    Sorry for the inconvenience that happens to you.

    As you mentioned, the error can be fixed by removing cookies. From my personal point of view, preventing this kind of issue happens again will be much better than telling we users how to solve the issue. As the forum team support, we have the limited resource to investigate more. Given this situation, I would like to suggest you open a support ticket to report this issue. The support team there will have the correct channel to investigate more and try to find a solution to prevent the error from happening.

    Appreciate your understanding and patience.

    Regards,

    George

    1 person found this answer helpful.
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  2. Anonymous
    2020-10-15T17:59:26+00:00

    That didn't work for me. Still looking for a solution to poorly configured websites.

    3 people found this answer helpful.
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  3. Anonymous
    2020-10-16T20:38:29+00:00

    Hi CrabAppleLaneRob,

    Thanks for posting in the community.

    May I re-confirm whether you have tried to reset the browser? Also, since the thread is aged, I would like to suggest you post a new thread about the issue. Our moderator and other members will come and help you to investigate the issue.

    Regards,

    George

    3 people found this answer helpful.
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