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Error '503 service unavailable' when URL contain special characters

게시 일자: Oct 13, 2022
상세 설명
When Special characters like "< ,>,( ,),{,},[,] ,!" are added to the custom URL of the salesforce sites, the URL will return the 503 error (not 404)
 
솔루션
Whenever special character like "< ,>,( ,),{,},[,] ,!"  etc are added to the site URL then "503 service unavailable" as expected.

Example :-   The customer site https://subdomain.example.com (will work fine) .Now try to add one of the special characters  like  " < ,>,( ,),{,},[,] ,! " in the URL and the new URL will be like https://subdomain.example.com/<  and it will throw the error page 503 service unavailable  (Press F12 to open the Browser console and check the Network tab for logs).

This happens because the request passes through a name validation check before it gets to a resource lookup. Name validation fails at that point and request will halt with a non 404 error and a subsequent resource lookup will not occur at all.
 
Knowledge 기사 번호

000381809

 
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Salesforce Help | Article