Webpanels and spesial charachters

We have an online customer with a webpanel refering to a shchema. 
But if the customer name for instance contains & in the company name this is not correctly "translated"
Company name in SuperOffice: Persen & Co AS
Will be Persen%20&%20Co%20AS in the url
Should be: Persen%20%26%20Co%20AS
Anyone knows if this is a known problem?
Anne Lene

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