hacky try number 3

Author: cmmdotsh

crytic_compile/platform/etherscan.py

@@ -257,6 +257,8 @@ def compile(self, crytic_compile: "CryticCompile", **kwargs: str) -> None:
         contract_name: str = ""
 
         if not only_bytecode:
+            if "polygon" in etherscan_url:
+                etherscan_url = urllib.request.Request(etherscan_url,headers={"User-Agent": "Mozilla/5.0"})
             with urllib.request.urlopen(etherscan_url) as response:
                 html = response.read()