Enable (optional) blocking of webrequests in case a PAC script cannot be fetched or is invalid.

chrome/common/extensions/docs/experimental.proxy.html

Index: chrome/common/extensions/docs/experimental.proxy.html
diff --git a/chrome/common/extensions/docs/experimental.proxy.html b/chrome/common/extensions/docs/experimental.proxy.html
index 44cd5febeb66a8e22d0f6dc7721bc9f0b7f6e83b..4010576159d6fd6441518df15b4a45ae2eab051a 100644
--- a/chrome/common/extensions/docs/experimental.proxy.html
+++ b/chrome/common/extensions/docs/experimental.proxy.html
@@ -2042,6 +2042,74 @@ element.
           </dd>
 
         </div>
+              </div><div>
+                <div>
+          <dt>
+            <var>mandatory</var>
+              <em>
+
+                <!-- TYPE -->
+                <div style="display:inline">
+                  (
+                    <span class="optional">optional</span>
+                    <span class="enum" style="display: none; ">enumerated</span>
+                    <span id="typeTemplate">
+                      <span style="display: none; ">
+                        <a> Type</a>
+                      </span>
+                      <span>
+                        <span style="display: none; ">
+                          array of <span><span></span></span>
+                        </span>
+                        <span>boolean</span>
+                        <span style="display: none; "></span>
+                      </span>
+                    </span>
+                  )
+                </div>
+
+              </em>
+          </dt>
+          <dd class="todo" style="display: none; ">
+            Undocumented.
+          </dd>
+          <dd>If true, an invalid PAC script will prevent the network stack from falling back to direct connections. Defaults to false.</dd>
+          <dd style="display: none; ">
+            This parameter was added in version
+            <b><span></span></b>.
+            You must omit this parameter in earlier versions,
+            and you may omit it in any version.  If you require this
+            parameter, the manifest key
+            <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+            can ensure that your extension won't be run in an earlier browser version.
+          </dd>
+
+          <!-- OBJECT PROPERTIES -->
+          <dd style="display: none; ">
+            <dl>
+              <div>
+                <div>
+                </div>
+              </div>
+            </dl>
+          </dd>
+
+          <!-- OBJECT METHODS -->
+          <dd style="display: none; ">
+            <div></div>
+          </dd>
+
+          <!-- OBJECT EVENT FIELDS -->
+          <dd style="display: none; ">
+            <div></div>
+          </dd>
+
+          <!-- FUNCTION PARAMETERS -->
+          <dd style="display: none; ">
+            <div></div>
+          </dd>
+
+        </div>
               </div>
             </dl>
           </dd>