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powerappspower-platform

Power Pages Error on switching language - incorrectly urlencodes query string

I've set up a blank site in Power Pages with multiple languages (English, French German).

I also have a use case for providing a query string parameter (for example, id).

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When using the standard language switcher, the entire query string is url encoded, including the question mark, which results in an ASP.NET error as shown in the image below. I have switched off custom errors in the portal site settings to show the error detail.

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Not sure how long this has been happening, but it appears to be a new issue.

Solution

  • I raised a ticket with MS and they confirmed a recent change has resulted in this default behavior.

    The good news is that it can be switched off with a portal site setting called Site/EnableLanguageDropUrlEncoding.

    Set to false to switch off the encoding.

    enter image description here