WebApi web.config configuration when working behind a proxy

WebApi web.config Proxy Configurations

# WebApi web.config configuration when working behind a proxy
## Approach 1

```xml
 <system.net>
    <defaultProxy enabled="false"></defaultProxy>
</system.net>
```

## Approach 2

```xml
<system.net>
    <defaultProxy enabled="true" useDefaultCredentials="true"></defaultProxy>
</system.net>
```

## Approach 3

```xml
<system.net>
    <defaultProxy>
        <proxy usesystemdefault="False" proxyaddress="http://10.100.10.99:8080" />
        </defaultProxy>
</system.net>
```