MAGETWO-47240: [GitHub]JavaScript Error on Checkout Page after Changing Country in Estimate Shipping and Tax Block

Author: omiroshnichenko

app/code/Magento/Customer/view/frontend/templates/address/edit.phtml

@@ -75,8 +75,7 @@
                        value="<?php echo $block->escapeHtml($block->getStreetLine(1)) ?>"
                        title="<?php /* @escapeNotVerified */ echo __('Street Address') ?>"
                        id="street_1"
-                       class="input-text <?php /* @escapeNotVerified */
-                echo $_streetValidationClass ?>"/>
+                       class="input-text <?php /* @escapeNotVerified */ echo $_streetValidationClass ?>"/>
                 <div class="nested">
                     <?php $_streetValidationClass = trim(str_replace('required-entry', '', $_streetValidationClass)); ?>
                     <?php for ($_i = 1, $_n = $this->helper('Magento\Customer\Helper\Address')->getStreetLines(); $_i < $_n; $_i++): ?>
@@ -88,7 +87,8 @@
                                 <input type="text" name="street[]"
                                        value="<?php echo $block->escapeHtml($block->getStreetLine($_i + 1)) ?>"
                                        title="<?php /* @escapeNotVerified */ echo __('Street Address %1', $_i + 1) ?>"
-                                       id="street_<?php /* @escapeNotVerified */ echo $_i + 1 ?>" echo $_streetValidationClass ?>">
+                                       id="street_<?php /* @escapeNotVerified */ echo $_i + 1 ?>"
+                                       class="input-text <?php /* @escapeNotVerified */ echo $_streetValidationClass ?>">
                             </div>
                         </div>
                     <?php endfor; ?>

app/code/Magento/Ui/view/base/web/js/lib/validation/rules.js

@@ -49,13 +49,13 @@ define([
     return _.mapObject({
         "min_text_length": [
             function (value, params) {
-                return value.length == 0 || value.length >= +params;
+                return _.isUndefined(value) || value.length == 0 || value.length >= +params;
             },
             $.mage.__('Please enter more or equal than {0} symbols.')
         ],
         "max_text_length": [
             function (value, params) {
-                return value.length <= +params;
+                return !_.isUndefined(value) && value.length <= +params;
             },
             $.mage.__('Please enter less or equal than {0} symbols.')
         ],