Prevent URL encoding in Power Query?

[mithrandir]

I have a URL that needs to contain spaces and parentheses in a query parameter. I'm using Web.Contents() to consume data from an API and my function looks similar to the following:

Web.Contents(
     #"URL Param",
     [Query =
          [a = "b IN (a,b,c)"]])

When I execute the function in order to create my table, it errors out with a 400 and the URL appears to be encoded twice ( https://www.host.com/path?a=b%2520IN%2520%2528a,b,c%2529 ). Is there a way to prevent Power Query/Power BI from encoding the URL so that it only gets encoded the once? Or is there a better way to pass the string in Web.Contents()?

[powerbiclaroty]

Did you solve it? Same here

[v-yuta-msft]

Hi mithrandir,

Modify your code like this pattern and check if it can work.

Source = Web.Contents("URL Param", [[Headers = [#"Accept-Encoding" = "gzip" ]], [Query = [a = "b IN (a, b, c)"]]])

Regards,

Jimmy Tao