public static com.google.cloud.websecurityscanner.v1alpha.Xss getDefaultInstance() {
    return DEFAULT_INSTANCE;
  }
<pre>
An error message generated by a javascript breakage.
</pre>

<code>string error_message = 2;</code>

@param value The bytes for errorMessage to set.
@return This builder for chaining.
java-websecurityscanner/proto-google-cloud-websecurityscanner-v1alpha/src/main/java/com/google/cloud/websecurityscanner/v1alpha/Xss.java