anchor.diff:  <form action="<c:url value="/user-filter/favorite-tag"/>" method="POST">
     <lor:csrf/>
     <label>Тег: <input autocapitalize="off" data-tags-autocomplete="data-tags-autocomplete" type="text" name="tagName" id="newFavoriteTagName" size="20" maxlength="80" value="${fn:escapeXml(newFavoriteTagName)}"></label>
  -  <input type="submit" name="add" value="Добавить">
  +  <button type="submit" name="add" class="btn btn-default">Добавить</button>
     <c:if test="${favoriteTagAddError != null}"><div class="error">
     <c:forEach var="tagAddError" items="${favoriteTagAddError}">
       ${tagAddError}<br />
  
positive.code: <form action="<c:url value="/user-filter/ignore-tag"/>" method="POST">
    <lor:csrf/>
    <label>Тег: <input type="text" name="tagName" autocapitalize="off" data-tags-autocomplete="data-tags-autocomplete" id="newIgnoreTagName" size="20" maxlength="80" value="${fn:escapeXml(newIgnoreTagName)}"></label>
    <input type="submit" name="add" value="Добавить">
    <c:if test="${ignoreTagAddError != null}"><div class="error">
    <c:forEach var="tagAddError" items="${ignoreTagAddError}">
      ${tagAddError}<br />
  
negative.code:           <lor:csrf/>
            <input type="hidden" name="tagName" value="${tagName}">
            <span style="white-space: nowrap">${tagName}</span>
            <button type="submit" name="del" class="btn btn-default btn-small">Удалить</button>
          </form>
        </li>
      </c:forEach>
  