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Editorial Team
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Asked: 2026-06-08T00:06:10+00:00

Some users who navigate to my page do so via an url like this

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Some users who navigate to my page do so via an url like this : http://domain/ProductDetail.aspx?Productid=123#Pricing

In this section is a asp:button to make a purchase. This button cause a postback, and when the page rerendering in the broswer the FragmentIdentifier #Pricing is still in the address window.

This is causing problems because there is new content rendered on the page which isn’t visible if the browser navigates to the #Pricing section.

How do I prevent the FragmentIdentifier on postback?

Clarification:
It appears that this problem happens in Chrome but does not happen in IE8 or FireFox. Chrome holds on to the #FragmentIdentifier after postback even those there is no reference to it in the action attribute.

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1 Answer

  1. Editorial Team

    You can’t, browser doesn’t send it:

    When a URI reference is used to perform a retrieval action on the
    identified resource, the optional fragment identifier, separated from
    the URI by a crosshatch (“#”) character, consists of additional
    reference information to be interpreted by the user agent after the
    retrieval action has been successfully completed. As such, it is not
    part of a URI, but is often used in conjunction with a URI.

    How to get Url Hash (#) from server side

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