/extension/pscanrulesAlpha/ExampleSimplePassiveScanRule.java">ExampleSimplePassiveScanRule.java</a>

<h2 id="id-90005">Fetch Metadata Request Headers Scan Rule</h2>
Fetch Metadata Request headers are HTTP request headers that provide additional information about a request's origin.
This additional information helps the server to implement resource isolation policy, allowing external sites to request only
those resources that are intended for sharing, and that are used appropriately. This approach can help m