Feature request from astorm, posted on GitHub Nov 17, 2016
This is one specific example of a more widespread problem. Many of Magento 2's RequireJS modules have a dependency on a global window.checkoutConfig object. This renders these modules unusable anywhere other than the Magento checkout pages.
If Magento's hewing closely to the the implicit guidelines they've set for themselves and their third party partners and independent open source developers working with the platform, this checkout configuration should be passed in to the RequireJS programs via an x-magento-init script.
You can see a list of these global dependencies with the following unix command line (replace vendor/magento with wherever your components are)
$ find vendor/magento/ -name '*.js' | xargs grep 'window\.checkoutConfig'
vendor/magento//module-braintree/view/frontend/web/js/view/payment/adapter.js: return window.checkoutConfig.payment[this.getCode()].clientToken;
vendor/magento//module-braintree/view/frontend/web/js/view/payment/braintree.js: var config = window.checkoutConfig.payment,
vendor/magento//module-braintree/view/frontend/web/js/view/payment/method-renderer/cc-form.js: validator.setConfig(window.checkoutConfig.payment[this.getCode()]);
vendor/magento//module-braintree/view/frontend/web/js/view/payment/method-renderer/cc-form.js: return window.checkoutConfig.payment[this.getCode()].hasFraudProtection;
vendor/magento//module-braintree/view/frontend/web/js/view/payment/method-renderer/cc-form.js: return window.checkoutConfig.payment[this.getCode()].environment;
vendor/magento//module-braintree/view/frontend/web/js/view/payment/method-renderer/cc-form.js: return window.checkoutConfig.payment[this.getCode()].kountMerchantId;
vendor/magento//module-braintree/view/frontend/web/js/view/payment/method-renderer/hosted-fields.js: return window.checkoutConfig.payment[this.getCode()].ccVaultCode;
vendor/magento//module-braintree/view/frontend/web/js/view/payment/method-renderer/paypal.js: return window.checkoutConfig.payment[this.getCode()].title;
vendor/magento//module-braintree/view/frontend/web/js/view/payment/method-renderer/paypal.js: return window.checkoutConfig.payment[this.getCode()].locale;
vendor/magento//module-braintree/view/frontend/web/js/view/payment/method-renderer/paypal.js: return window.checkoutConfig.payment[this.getCode()].isAllowShippingAddressOverride;
vendor/magento//module-braintree/view/frontend/web/js/view/payment/method-renderer/paypal.js: return window.checkoutConfig.payment[this.getCode()].merchantName;
vendor/magento//module-braintree/view/frontend/web/js/view/payment/method-renderer/paypal.js: return window.checkoutConfig.payment[this.getCode()].paymentAcceptanceMarkSrc;
vendor/magento//module-braintree/view/frontend/web/js/view/payment/validator-handler.js: return window.checkoutConfig.payment;
vendor/magento//module-checkout/view/frontend/web/js/action/redirect-on-success.js: redirectUrl: window.checkoutConfig.defaultSuccessPageUrl,
vendor/magento//module-checkout/view/frontend/web/js/model/checkout-data-resolver.js: if (!availableRate && window.checkoutConfig.selectedShippingMethod) {
vendor/magento//module-checkout/view/frontend/web/js/model/checkout-data-resolver.js: selectShippingMethodAction(window.checkoutConfig.selectedShippingMethod);
vendor/magento//module-checkout/view/frontend/web/js/model/new-customer-address.js: countryId: (addressData.country_id) ? addressData.country_id : window.checkoutConfig.defaultCountryId,
vendor/magento//module-checkout/view/frontend/web/js/model/new-customer-address.js: : window.checkoutConfig.defaultRegionId,
vendor/magento//module-checkout/view/frontend/web/js/model/new-customer-address.js: postcode: addressData.postcode ? addressData.postcode : window.checkoutConfig.defaultPostcode,
vendor/magento//module-checkout/view/frontend/web/js/model/postcode-validator.js: var patterns = window.checkoutConfig.postCodes[countryId];
vendor/magento//module-checkout/view/frontend/web/js/model/quote.js: var quoteData = window.checkoutConfig.quoteData;
vendor/magento//module-checkout/view/frontend/web/js/model/quote.js: var basePriceFormat = window.checkoutConfig.basePriceFormat;
vendor/magento//module-checkout/view/frontend/web/js/model/quote.js: var priceFormat = window.checkoutConfig.priceFormat;
vendor/magento//module-checkout/view/frontend/web/js/model/quote.js: var storeCode = window.checkoutConfig.storeCode;
vendor/magento//module-checkout/view/frontend/web/js/model/quote.js: var totalsData = window.checkoutConfig.totalsData;
vendor/magento//module-checkout/view/frontend/web/js/model/quote.js: return window.checkoutConfig.quoteItemData;
vendor/magento//module-checkout/view/frontend/web/js/model/shipping-rates-validation-rules.js: checkoutConfig = window.checkoutConfig;
vendor/magento//module-checkout/view/frontend/web/js/model/shipping-rates-validator.js: var checkoutConfig = window.checkoutConfig,
vendor/magento//module-checkout/view/frontend/web/js/model/step-navigator.js: window.location.href = window.checkoutConfig.pageNotFoundUrl;
vendor/magento//module-checkout/view/frontend/web/js/model/step-navigator.js: window.location = window.checkoutConfig.checkoutUrl + "#" + code;
vendor/magento//module-checkout/view/frontend/web/js/model/step-navigator.js: window.location = window.checkoutConfig.checkoutUrl + "#" + code;
vendor/magento//module-checkout/view/frontend/web/js/model/url-builder.js: storeCode: window.checkoutConfig.storeCode,
vendor/magento//module-checkout/view/frontend/web/js/view/authentication.js: var checkoutConfig = window.checkoutConfig;
vendor/magento//module-checkout/view/frontend/web/js/view/billing-address.js: if (window.checkoutConfig.reloadOnBillingAddress) {
vendor/magento//module-checkout/view/frontend/web/js/view/billing-address.js: if (window.checkoutConfig.reloadOnBillingAddress) {
vendor/magento//module-checkout/view/frontend/web/js/view/billing-address.js: if (window.checkoutConfig.reloadOnBillingAddress) {
vendor/magento//module-checkout/view/frontend/web/js/view/form/element/email.js: forgotPasswordUrl: window.checkoutConfig.forgotPasswordUrl,
vendor/magento//module-checkout/view/frontend/web/js/view/payment.js: paymentService.setPaymentMethods(methodConverter(window.checkoutConfig.paymentMethods));
vendor/magento//module-checkout/view/frontend/web/js/view/payment.js: return window.checkoutConfig.formKey;
vendor/magento//module-checkout/view/frontend/web/js/view/summary/item/details/thumbnail.js: var imageData = window.checkoutConfig.imageData;
vendor/magento//module-checkout-agreements/view/frontend/web/js/model/agreement-validator.js: var checkoutConfig = window.checkoutConfig,
vendor/magento//module-checkout-agreements/view/frontend/web/js/model/agreements-assigner.js: var agreementsConfig = window.checkoutConfig.checkoutAgreements;
vendor/magento//module-checkout-agreements/view/frontend/web/js/view/checkout-agreements.js: var checkoutConfig = window.checkoutConfig,
vendor/magento//module-offline-payments/view/frontend/web/js/view/payment/method-renderer/banktransfer-method.js: return window.checkoutConfig.payment.instructions[this.item.method];
vendor/magento//module-offline-payments/view/frontend/web/js/view/payment/method-renderer/cashondelivery-method.js: return window.checkoutConfig.payment.instructions[this.item.method];
vendor/magento//module-offline-payments/view/frontend/web/js/view/payment/method-renderer/checkmo-method.js: return window.checkoutConfig.payment.checkmo.mailingAddress;
vendor/magento//module-offline-payments/view/frontend/web/js/view/payment/method-renderer/checkmo-method.js: return window.checkoutConfig.payment.checkmo.payableTo;
vendor/magento//module-payment/view/frontend/web/js/view/payment/cc-form.js: return window.checkoutConfig.payment.ccform.availableTypes[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/cc-form.js: return window.checkoutConfig.payment.ccform.icons.hasOwnProperty(type) ?
vendor/magento//module-payment/view/frontend/web/js/view/payment/cc-form.js: window.checkoutConfig.payment.ccform.icons[type]
vendor/magento//module-payment/view/frontend/web/js/view/payment/cc-form.js: return window.checkoutConfig.payment.ccform.months[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/cc-form.js: return window.checkoutConfig.payment.ccform.years[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/cc-form.js: return window.checkoutConfig.payment.ccform.hasVerification[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/cc-form.js: return window.checkoutConfig.payment.ccform.hasSsCardType[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/cc-form.js: return window.checkoutConfig.payment.ccform.cvvImageUrl[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/cc-form.js: return window.checkoutConfig.payment.ccform.ssStartYears[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/iframe.js: return window.checkoutConfig.payment.iframe.source[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/iframe.js: return window.checkoutConfig.payment.iframe.controllerName[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/iframe.js: return window.checkoutConfig.payment.iframe.placeOrderUrl[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/iframe.js: return window.checkoutConfig.payment.iframe.cgiUrl[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/iframe.js: return window.checkoutConfig.payment.iframe.saveOrderUrl[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/iframe.js: return window.checkoutConfig.payment.iframe.dateDelim[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/iframe.js: return window.checkoutConfig.payment.iframe.cardFieldsMap[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/iframe.js: return window.checkoutConfig.payment.iframe.expireYearLength[this.getCode()];
vendor/magento//module-payment/view/frontend/web/js/view/payment/iframe.js: return window.checkoutConfig.payment.iframe.timeoutTime[this.getCode()];
vendor/magento//module-paypal/view/frontend/web/js/view/payment/method-renderer/iframe-methods.js: return this.isInAction() ? window.checkoutConfig.payment.paypalIframe.actionUrl[this.getCode()] : '';
vendor/magento//module-paypal/view/frontend/web/js/view/payment/method-renderer/paypal-billing-agreement.js: return window.checkoutConfig.payment.paypalBillingAgreement.transportName;
vendor/magento//module-paypal/view/frontend/web/js/view/payment/method-renderer/paypal-billing-agreement.js: return window.checkoutConfig.payment.paypalBillingAgreement.agreements;
vendor/magento//module-paypal/view/frontend/web/js/view/payment/method-renderer/paypal-express-abstract.js: return window.checkoutConfig.payment.paypalExpress.paymentAcceptanceMarkHref;
vendor/magento//module-paypal/view/frontend/web/js/view/payment/method-renderer/paypal-express-abstract.js: return window.checkoutConfig.payment.paypalExpress.paymentAcceptanceMarkSrc;
vendor/magento//module-paypal/view/frontend/web/js/view/payment/method-renderer/paypal-express-abstract.js: return window.checkoutConfig.payment.paypalExpress.billingAgreementCode[this.item.method];
vendor/magento//module-paypal/view/frontend/web/js/view/payment/method-renderer/paypal-express-abstract.js: window.checkoutConfig.payment.paypalExpress.redirectUrl[quote.paymentMethod().method]
vendor/magento//module-paypal/view/frontend/web/js/view/payment/paypal-payments.js: var isContextCheckout = window.checkoutConfig.payment.paypalExpress.isContextCheckout,
vendor/magento//module-paypal/view/frontend/web/js/view/payment/paypal-payments.js: config: window.checkoutConfig.payment.paypalExpress.inContextConfig
vendor/magento//module-paypal/view/frontend/web/js/view/review/actions/iframe.js: return this.isInAction() ? window.checkoutConfig.payment.paypalIframe.actionUrl[this.getCode()] : '';
vendor/magento//module-persistent/view/frontend/web/js/view/remember-me.js: var persistenceConfig = window.checkoutConfig.persistenceConfig;
vendor/magento//module-shipping/view/frontend/web/js/model/config.js: return window.checkoutConfig.shippingPolicy
vendor/magento//module-tax/view/frontend/web/js/view/checkout/cart/totals/tax.js: var isFullTaxSummaryDisplayed = window.checkoutConfig.isFullTaxSummaryDisplayed,
vendor/magento//module-tax/view/frontend/web/js/view/checkout/cart/totals/tax.js: isZeroTaxDisplayed = window.checkoutConfig.isZeroTaxDisplayed;
vendor/magento//module-tax/view/frontend/web/js/view/checkout/shipping_method/price.js: isDisplayShippingPriceExclTax: window.checkoutConfig.isDisplayShippingPriceExclTax,
vendor/magento//module-tax/view/frontend/web/js/view/checkout/shipping_method/price.js: isDisplayShippingBothPrices: window.checkoutConfig.isDisplayShippingBothPrices,
vendor/magento//module-tax/view/frontend/web/js/view/checkout/summary/grand-total.js: isFullTaxSummaryDisplayed: window.checkoutConfig.isFullTaxSummaryDisplayed || false,
vendor/magento//module-tax/view/frontend/web/js/view/checkout/summary/grand-total.js: isTaxDisplayedInGrandTotal: window.checkoutConfig.includeTaxInGrandTotal || false,
vendor/magento//module-tax/view/frontend/web/js/view/checkout/summary/item/details/subtotal.js: var displayPriceMode = window.checkoutConfig.reviewItemPriceDisplayMode || 'including';
vendor/magento//module-tax/view/frontend/web/js/view/checkout/summary/shipping.js: var displayMode = window.checkoutConfig.reviewShippingDisplayMode;
vendor/magento//module-tax/view/frontend/web/js/view/checkout/summary/subtotal.js: var displaySubtotalMode = window.checkoutConfig.reviewTotalsDisplayMode;
vendor/magento//module-tax/view/frontend/web/js/view/checkout/summary/tax.js: var isTaxDisplayedInGrandTotal = window.checkoutConfig.includeTaxInGrandTotal;
vendor/magento//module-tax/view/frontend/web/js/view/checkout/summary/tax.js: var isFullTaxSummaryDisplayed = window.checkoutConfig.isFullTaxSummaryDisplayed;
vendor/magento//module-tax/view/frontend/web/js/view/checkout/summary/tax.js: var isZeroTaxDisplayed = window.checkoutConfig.isZeroTaxDisplayed;
vendor/magento//module-usps/view/frontend/web/js/model/shipping-rates-validator.js: var checkoutConfig = window.checkoutConfig;
vendor/magento//module-vault/view/frontend/web/js/view/payment/method-renderer/vault.js: return window.checkoutConfig.payment.ccform.icons.hasOwnProperty(type) ?
vendor/magento//module-vault/view/frontend/web/js/view/payment/method-renderer/vault.js: window.checkoutConfig.payment.ccform.icons[type]
vendor/magento//module-vault/view/frontend/web/js/view/payment/vault-enabler.js: return typeof window.checkoutConfig.vault[this.paymentCode] !== 'undefined' &&
vendor/magento//module-vault/view/frontend/web/js/view/payment/vault-enabler.js: window.checkoutConfig.vault[this.paymentCode]['is_enabled'] === true;
vendor/magento//module-vault/view/frontend/web/js/view/payment/vault.js: _.each(window.checkoutConfig.payment.vault, function (config, index) {
vendor/magento//module-weee/view/frontend/web/js/view/checkout/summary/item/price/row_excl_tax.js: if (!window.checkoutConfig.getIncludeWeeeFlag) {
vendor/magento//module-weee/view/frontend/web/js/view/checkout/summary/item/price/row_excl_tax.js: if (window.checkoutConfig.getIncludeWeeeFlag) {
vendor/magento//module-weee/view/frontend/web/js/view/checkout/summary/item/price/row_incl_tax.js: if (!window.checkoutConfig.getIncludeWeeeFlag) {
vendor/magento//module-weee/view/frontend/web/js/view/checkout/summary/item/price/row_incl_tax.js: if (window.checkoutConfig.getIncludeWeeeFlag) {
vendor/magento//module-weee/view/frontend/web/js/view/checkout/summary/item/price/weee.js: return window.checkoutConfig.isDisplayPriceWithWeeeDetails;
vendor/magento//module-weee/view/frontend/web/js/view/checkout/summary/item/price/weee.js: return window.checkoutConfig.isDisplayFinalPrice;
vendor/magento//module-weee/view/frontend/web/js/view/checkout/summary/weee.js: isIncludedInSubtotal: window.checkoutConfig.isIncludedInSubtotal,