“Undefined” in try again button on Zipcode error

In the ‘try again’ button when filling an unknown zipcode, the button shows value ‘undefined’ instead of ‘try again’.

With latest WP, WC, PostNL versions. Also with Storefront theme.

Image: https://ibb.co/ZGYznF1

The showRetry function in postnl.js:830 does the following:
<br><div id="post-error-try-again" class="button btn">' + PostNL.data.textToTranslate.again + '</div>' +'

But, PostNL.data.textToTranslate does not have a property ‘again’. There also is no setting found in the plugin to even modify that text.

BEdeliveryStandardTitle: "Standaard bezorging"
BEdeliveryTitle: "Delivery"
addressNotFound: "Adresgegevens zijn nog niet ingevuld"
city: "City"
closed: "Gesloten"
deliveryEveningTitle: "Avondbezorging"
deliveryMorningTitle: "Ochtendbezorging"
deliveryStandardTitle: "Standaard bezorging"
deliveryTitle: "Bezorging"
friday: "vrijdag"
headerDeliveryOptions: " Bezorgopties selecteren"
houseNumber: "Huisnummer"
monday: "maandag"
onlyRecipientTitle: "Alleen huisadres"
openingHours: "Openingstijden"
pickUpFrom: "Ophalen vanaf"
pickupTitle: "Afhalen bij PostNL"
postcode: "Postcode"
quickDelivery: "Zo snel mogelijk bezorgen"
retry: "Retry"
saturday: "zaterdag"
saturdayDeliveryTitle: "saturday_delivery_title"
signatureTitle: "Handtekening voor ontvangst"
sunday: "zondag"
thursday: "donderdag"
tuesday: "dinsdag"
wednesday: "woensdag"
wrongHouseNumberPostcode: "Huisnummer/postcode combinatie onbekend"

There also is NO property being added to this dataset in class-wcmp-frontend.php.

Please note we temporarily modified the plugin to make sure the text is shown, so you will not see this in our example.

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