diff --git a/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/App.js b/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/App.js
index e93a82a..8c4463d 100644
--- a/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/App.js
+++ b/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/App.js
@@ -7,6 +7,7 @@ import getNotControlledWarning from './NotControlledWarning';
 import getTabPanel from './TabPanel';
 import getPacChooser from './PacChooser';
 import getNotifications from './Notifications';
+import getExceptions from './Exceptions';
 
 import getFooter from './Footer';
 
@@ -14,8 +15,11 @@ export default function getApp(theState) {
 
   const NotControlledWarning = getNotControlledWarning(theState);
   const TabPanel = getTabPanel(theState);
+
   const PacChooser = getPacChooser(theState);
   const Notifications = getNotifications(theState);
+  const Exceptions = getExceptions(theState);
+
   const Footer = getFooter(theState);
 
   return class App extends Component {
@@ -44,7 +48,7 @@ export default function getApp(theState) {
 
       const warningHtml = warns
         .map(
-          (w) => w && w.messageHtml || ''
+          (w) => w && w.message || ''
         )
         .filter( (m) => m )
         .map( (m) => '✘ ' + m )
@@ -104,7 +108,7 @@ export default function getApp(theState) {
 
         warns = warns.filter( (w) => w );
         if (err || warns.length) {
-          showErrors(err, ...warns);
+          this.showErrors(err, ...warns);
         } else {
           this.setStatusTo(afterStatus);
         }
@@ -119,12 +123,13 @@ export default function getApp(theState) {
 
     }
 
-    render(props) {
+    render(originalProps) {
 
-      props = Object.assign({}, props, {
+      const props = Object.assign({}, originalProps, {
         funs: {
           setStatusTo: this.setStatusTo.bind(this),
           conduct: this.conduct.bind(this),
+          showErrors: this.showErrors.bind(this),
         },
         ifInputsDisabled: this.state.ifInputsDisabled,
       });
@@ -139,7 +144,7 @@ export default function getApp(theState) {
             },
             {
               label: 'Исключения',
-              content: "Exceptions().render(this.props)",
+              content: createElement(Exceptions, props),
             },
             {
               label: 'Свои прокси',
diff --git a/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/ExcEditor.js b/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/ExcEditor.js
new file mode 100644
index 0000000..99ede5f
--- /dev/null
+++ b/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/ExcEditor.js
@@ -0,0 +1,344 @@
+import Inferno from 'inferno';
+import Component from 'inferno-component';
+import css from 'csjs-inject';
+
+export default function getExcEditor(theState) {
+
+  const scopedCss = css`
+
+    #exc-address-container {
+      display: flex;
+      align-items: center;
+      width: 100%;
+    }
+    #exc-address-container > a {
+      border-bottom: 1px solid transparent;
+      margin-left: 0.2em;
+      align-self: flex-end;
+    }
+    #exc-address {
+      width: 100%;
+      display: flex;
+      align-items: baseline;
+      --exc-hieght: 1.6em;
+      font-size: 1em;
+      border-bottom: 1px solid var(--ribbon-color) !important;
+    }
+    input#exc-editor {
+      border: none;
+      width: 100%;
+      background: inherit;
+      /* The two below align '.' (dot) vertically. */
+      max-height: var(--exc-hieght) !important;
+      min-height: var(--exc-hieght) !important;
+    }
+    #exc-radio {
+      display: flex;
+      justify-content: space-around;
+      margin-top: 0.5em;
+    }
+    [name="if-proxy-this-site"]:checked + label {
+      font-weight: bold;
+    }
+    #exc-address.ifYes {
+      background-color: lightgreen;
+    }
+    #exc-address.ifNo {
+      background-color: pink;
+    }
+
+  `;
+
+  const labelIfProxied = '✔';
+  const labelIfNotProxied = '✘';
+  const labelIfAuto = '↻';
+
+  /* Not used.
+  const sortOptions = (options) => {
+
+    const aWins = 1;
+    return options.sort(([aHost, aState], [bHost, bState]) => aState === undefined ? aWins : aHost.localeCompare(bHost))
+
+  };
+  */
+
+  return class ExcEditor extends Component {
+
+    modsToOpts(pacMods) {
+      
+      return Object.keys(pacMods.exceptions || {}).sort().map(
+        (excHost) => [excHost, pacMods.exceptions[excHost]]
+      );
+
+    }
+
+    constructor(props) {
+
+      super(props);
+
+      const pacMods = props.apis.pacKitchen.getPacMods();
+      this.state = {
+        trimmedInputValueOrSpace:
+          props.currentTab && !props.currentTab.url.startsWith('chrome') ? new URL(props.currentTab.url).hostname : '',
+        sortedListOfOptions: this.modsToOpts(pacMods),
+        isHostHidden: {}
+      };
+
+    }
+
+    hideAllOptions() {
+
+      this.setState({
+        isHostHidden: this.state.sortedListOfOptions.reduce(
+          (isHostHidden, [excHost]) => {
+
+            isHostHidden[excHost] = true;
+            return isHostHidden;
+
+          },
+        {}),
+      });
+      
+    }
+
+    isHostValid(host) {
+
+      const ValidHostnameRegex = /^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])$/;
+      if(!ValidHostnameRegex.test(host)) {
+        this.props.funs.showErrors(new TypeError('Должно быть только доменное имя, без протокола, порта и пути. Попробуйте ещё раз.'));
+        return false;
+      }
+      return true;
+
+    }
+
+    handleRadioClick(event) {
+
+      const host = this.state.trimmedInputValueOrSpace;
+      (() => { // `return` === `preventDefault`.
+
+        if(!this.isHostValid(host)) {
+          return false;
+        }
+
+        const pacMods = this.props.apis.pacKitchen.getPacMods();
+        pacMods.exceptions = pacMods.exceptions || {};
+
+        let ifYesClicked = false;
+        switch(event.target.id) {
+          case 'this-auto':
+            delete pacMods.exceptions[host];
+            break;
+
+          case 'this-yes':
+            ifYesClicked = true;
+          case 'this-no':
+            if (ifYesClicked && !pacMods.filteredCustomsString) {
+              this.props.funs.showErrors( new TypeError(
+                'Проксировать СВОИ сайты можно только при наличии СВОИХ прокси (см. «Модификаторы» ). Нет своих прокси, удовлетворяющих вашим требованиям.'
+              ));
+              return false;
+            }
+
+            pacMods.exceptions[host] = ifYesClicked;
+            break;
+
+          default:
+            throw new Error('Only yes/no/auto!');
+        }
+
+        this.props.funs.conduct(
+          'Применяем исключения...',
+          (cb) => this.props.apis.pacKitchen.keepCookedNowAsync(pacMods, cb),
+          'Исключения применены. Не забывайте о кэше!',
+          () => this.setState({sortedListOfOptions: this.modsToOpts(pacMods)})
+        );
+
+      })();
+      // Don't check before operation is finished.
+      event.preventDefault();
+
+    }
+
+    handleKeyDown(event) {
+
+      if(event.key === 'Enter') {
+        this.hideAllOptions();
+      }
+      return true;
+
+    }
+
+    handleInputOrClick(event) {
+
+      // Episode 1.
+
+      const ifClick = event && event.type === 'click';
+
+      // If triangle button on right of datalist input clicked.
+      let ifTriangleClicked = false;
+      {
+        const maxIndentFromRightInPx = 15;
+        ifTriangleClicked = ifClick
+          && !this.rawInput.selectionStart && !this.rawInput.selectionEnd
+          && event.x > this.rawInput.getBoundingClientRect().right - maxIndentFromRightInPx;
+      }
+
+      const setInputValue = (newValue) => {
+
+        if (ifClick && !ifTriangleClicked) {
+          // Don't jerk cursor on simple clicks.
+          return;
+        }
+        // See bug in my comment to http://stackoverflow.com/a/32394157/521957
+        // First click on empty input may be still ignored.
+        const newPos = this.rawInput.selectionStart + newValue.length - this.rawInput.value.length;
+        this.rawInput.value = newValue;
+        window.setTimeout(() => this.rawInput.setSelectionRange(newPos, newPos), 0);
+
+      };
+
+      const trimmedInput = event.target.value.trim();
+      const ifInputEmpty = !trimmedInput;
+      const ifInit = !event;
+      const currentHost = ifTriangleClicked ? '' : (trimmedInput || (ifInit ? '' : ' '));
+      setInputValue(currentHost);
+      this.setState({trimmedInputValueOrSpace: currentHost});
+
+      // Episode 2.
+
+      let exactHost, exactState; // Undefined.
+      let editedHost = false;
+      const hidden = this.state.sortedListOfOptions.reduce(
+        (hiddenAcc, [excHost, excState]) => {
+
+          if (excState === undefined) {
+            editedHost = excHost;
+          } else if (excHost === trimmedInput) {
+            // Exact match found for input.
+            [exactHost, exactState] = [excHost, excState];
+          }
+          hiddenAcc[excHost] = false;
+          return hiddenAcc;
+
+        },
+        {}
+      );
+      let options = this.state.sortedListOfOptions;
+      const removeEditedHost = () => {
+
+        options = options.filter(([excHost, excState]) => editedHost !== excHost);
+        delete hidden[editedHost];
+
+      };
+
+
+      (() => {// `return` === setState
+
+        if (ifTriangleClicked || ifInputEmpty) {
+          // Show all opts.
+          if (editedHost) {
+            // Example of editedOpt.value: 'abcde ' <- Mind the space (see unhideOptAndAddSpace)!
+            const ifBackspacedOneChar = ifInputEmpty && editedHost.length < 3;
+            if (ifBackspacedOneChar) {
+              removeEditedHost();
+            }
+            //
+          }
+          return true;
+        }
+
+        if (editedHost) {
+          const ifUpdateNeeded = editedHost !== trimmedInput;
+          if(!ifUpdateNeeded) {
+            hidden[editedHost] = true;
+            return true;
+          }
+          // Not exact! Update!
+          removeEditedHost();
+        }
+
+        if (!exactHost) {
+          editedHost = trimmedInput;
+          options.unshift([editedHost, undefined]);
+          if (!ifClick) {
+            // New value was typed -- don't show tooltip.
+            hidden[editedHost] = true;
+          }
+        }
+
+        // Exact found!
+        // Do nothing.
+
+      })();
+
+      this.setState({
+        isHostHidden: hidden,
+        sortedListOfOptions: options,
+      });
+
+    }
+
+    render(props) {
+
+      const inputProxyingState = this.state.sortedListOfOptions.reduce((acc, [excHost, excState]) => {
+
+        if ( acc !== undefined ) {
+          return acc;
+        }
+        return this.state.trimmedInputValueOrSpace === excHost ? excState : undefined;
+
+      }, undefined);
+
+      const onradio = this.handleRadioClick.bind(this);
+      const oninput = this.handleInputOrClick.bind(this);
+
+      return (
+        <section style="padding-bottom: 1em;">
+          <div>Проксировать указанный сайт?</div>
+          <div id="exc-address-container">
+            <div id="exc-address" class={inputProxyingState !== undefined ? ( inputProxyingState === true ? scopedCss.ifYes : scopedCss.ifNo ) : ''}>
+              <span>*.</span><input placeholder="navalny.com" list="exc-list" id="exc-editor"
+                value={this.state.trimmedInputValueOrSpace}
+                ref={(inputNode) => { this.rawInput = inputNode; }}
+                onKeyDown={this.handleKeyDown.bind(this)}
+                onInput={oninput}
+                onClick={oninput}
+              />
+            </div>
+            {/*<a href class="emoji">⇄</a>*/}
+            <a href="../exceptions/index.html" title="импорт/экспорт"><svg
+              class="icon"
+              ><use xlink:href="#iconImportExport"></use></svg>
+            </a>
+          </div>
+          <datalist id="exc-list">
+            {
+              this.state.sortedListOfOptions.map(([excHost, excState]) => {
+
+                // 1. Option's value may be changed to hide it from the tooltip.
+                // 2. Space is used in matching so even an empty input (replaced with space) has tooltip with prompts.
+                return <option
+                  value={ this.state.isHostHidden[excHost] ? '\n' : excHost + ' ' }
+                  label={ excState === true ? labelIfProxied : (excState === false ? labelIfNotProxied : labelIfAuto) }/>
+
+              })
+            }
+          </datalist>
+          <ol class="horizontalList" id="exc-radio">
+            <li><input id="this-auto" type="radio" checked name="if-proxy-this-site" onClick={onradio}/>{' '}
+                  <label for="this-auto">{/*<span class="emoji">🔄(looks fat)</span>*/}<svg
+                    class="icon"
+                    style="position: relative; top: 0.15em;"><use xlink:href="#iconLoopRound"></use></svg>&nbsp;авто</label>
+            </li>
+            <li><input id="this-yes" type="radio" name="if-proxy-this-site" checked={inputProxyingState === true} onClick={onradio}/>{' '}<label for="this-yes">✔&nbsp;да</label></li>
+            <li><input id="this-no" type="radio" name="if-proxy-this-site" checked={inputProxyingState === false} onClick={onradio}/>{' '}<label for="this-no">✘&nbsp;нет</label></li>
+          </ol>
+        </section>
+      );
+
+    }
+
+  };
+
+};
diff --git a/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/Exceptions.js b/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/Exceptions.js
new file mode 100644
index 0000000..7bf3f6d
--- /dev/null
+++ b/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/Exceptions.js
@@ -0,0 +1,68 @@
+import Inferno from 'inferno';
+import createElement from 'inferno-create-element';
+import css from 'csjs-inject';
+
+import getInfoLi from './InfoLi';
+import getExcEditor from './ExcEditor';
+
+export default function getExceptions(theState) {
+
+  const scopedCss = css`
+
+    #excMods {
+      padding-top: 1em;
+    }
+    #excMods input#mods-if-mind-exceptions:not(:checked) + .label-container label {
+      color: red;
+    }
+
+  `;
+
+  const InfoLi = getInfoLi(theState);
+  const ExcEditor = getExcEditor(theState);
+
+  return function Exceptions(props) {
+
+      const applyMods = (newMods) => {
+
+        props.apis.pacKitchen.keepCookedNowAsync(newMods, (err, ...warns) =>
+          err
+            ? props.funs.showErrors(err, ...warns)
+            : props.funs.setStatusTo('Применено.')
+        );
+
+      };
+
+      return (
+        <div>
+          {createElement(ExcEditor, props)}
+          <ul id="excMods">
+            {
+              props.apis.pacKitchen.getOrderedConfigs('exceptions').map((conf) => {
+
+                return <InfoLi
+                  conf={conf}
+                  type="checkbox"
+                  checked={conf.value}
+                  disabled={props.ifInputsDisabled}
+                  onClick={(evt) => {
+
+                    const oldMods = props.apis.pacKitchen.getPacMods();
+                    oldMods[conf.key] = !conf.value;
+                    applyMods(oldMods);
+
+                  }}
+                />;
+
+                //const key = conf.key;
+                //modKeyToLi[key] = li;
+
+              })
+            }
+          </ul>
+        </div>
+      );
+
+  };
+
+};
diff --git a/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/InfoLi.js b/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/InfoLi.js
index 1a91836..d959876 100644
--- a/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/InfoLi.js
+++ b/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/InfoLi.js
@@ -9,6 +9,9 @@ export default function getInfoRow() {
     .labelContainer {
       flex-grow: 9;
       padding-left: 0.3em;
+      /* Vertical align to middle. */
+      align-self: flex-end;
+      line-height: 100%;
     }
 
     /* INFO SIGNS */
@@ -122,7 +125,8 @@ export default function getInfoRow() {
               <div class={scopedCss.tooltip} dangerouslySetInnerHTML={{__html: props.conf.desc}}/>
             </div>)
           : (props.conf.url
-              && (<a href={props.conf.url} class={[scopedCss.rightBottomIcon, scopedCss.infoUrl].join(' ')}><InfoIcon /></a>)
+              ? (<a href={props.conf.url} class={[scopedCss.rightBottomIcon, scopedCss.infoUrl].join(' ')}><InfoIcon /></a>)
+              : (<span>&nbsp;</span>) // Affects vertical align of flexbox items.
             )
         }
       </li>
diff --git a/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/PacChooser.js b/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/PacChooser.js
index de63edf..4ca2737 100644
--- a/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/PacChooser.js
+++ b/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/components/PacChooser.js
@@ -32,7 +32,8 @@ export default function getPacChooser(theState) {
     input:checked + div .updateButton {
       visibility: inherit;
     }
-    label[for="onlyOwnSites"] + .updateButton {
+    label[for="onlyOwnSites"] + .updateButton,
+    label[for="none"] + .updateButton {
       display: none;
     }
     #none:checked + div label[for="none"] {
@@ -115,7 +116,7 @@ export default function getPacChooser(theState) {
           {props.flags.ifInsideOptionsPage && (<header>PAC-скрипт:</header>)}
           <ul>
             {
-              props.apis.antiCensorRu.getSortedEntriesForProviders().map((provConf) =>
+              [...props.apis.antiCensorRu.getSortedEntriesForProviders(), {key: 'none', label: 'Отключить'}].map((provConf) =>
                 (<InfoLi
                   onClick={this.radioClickHandler.bind(this)}
                   conf={provConf}
@@ -127,15 +128,15 @@ export default function getPacChooser(theState) {
                   &nbsp;<a href="" class={scopedCss.updateButton} onClick={(evt) => { evt.preventDefault(); updatePac(); }}>[обновить]</a>
                 </InfoLi>)
               )
-            }
-            <InfoLi
+            /*<InfoLi
               onClick={this.radioClickHandler.bind(this)}
               type="radio"
               name="pacProvider"
               conf={{key: 'none', label: 'Отключить'}}
               checked={iddyToCheck === 'none'}
               disabled={props.ifInputsDisabled}
-            />
+            />*/
+            }
           </ul>
           <div id="updateMessage" class="horFlex" style="align-items: center">
             { createElement(LastUpdateDate, props) }
diff --git a/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/index.js b/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/index.js
index 12759ef..444b9b4 100644
--- a/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/index.js
+++ b/extensions/chromium/runet-censorship-bypass/src/extension-common/pages/options/src/index.js
@@ -34,6 +34,7 @@ chrome.runtime.getBackgroundPage( (backgroundPage) =>
       );
 
       theState.flags.ifInsideOptionsPage = !currentTab || currentTab.url.startsWith('chrome://extensions/?options=');
+      theState.currentTab = currentTab;
 
       // STATE DEFINED, COMPOSE.