public Builder clearFrameUrl() {
      frameUrl_ = getDefaultInstance().getFrameUrl();
      bitField0_ = (bitField0_ & ~0x00000080);
      onChanged();
      return this;
    }
<pre>
If the vulnerability was originated from nested IFrame, the immediate
parent IFrame is reported.
</pre>

<code>string frame_url = 8;</code>

@return This builder for chaining.
java-websecurityscanner/proto-google-cloud-websecurityscanner-v1beta/src/main/java/com/google/cloud/websecurityscanner/v1beta/Finding.java