switch the connection lost from string check to error type check. #27
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Previously the code, is checking for an error string containing "i/o timeout" to handle connection loss. However, the error message "read: operation timed out" does not match the check.
To address this, I modified the error checking to cover more cases. Instead of looking for a specific error string, check for a timeout is using the net.Error interface and its Timeout() method. This approach is generally more reliable and less prone to breakage if the error messages change.
#26 (comment)