diff --git a/src/store/modules/feature_type.js b/src/store/modules/feature_type.js
index cfc3c0ddb6f6d5d20bd0133ac18b4c046ee99b9a..612c4140631d3e8990f056d995417a9bf0bdb12f 100644
--- a/src/store/modules/feature_type.js
+++ b/src/store/modules/feature_type.js
@@ -160,12 +160,13 @@ const feature_type = {
     },
 
     SEND_FEATURES_FROM_GEOJSON({ state, dispatch }, payload) {
-      const { feature_type_slug } = payload
+      console.log(payload);
+      const { feature_type_slug } = payload;
 
       if (state.fileToImport.size > 0) {
         let formData = new FormData();
-        formData.append("json_file", state.fileToImport);
-        formData.append("feature_type_slug", feature_type_slug);
+        formData.append('json_file', state.fileToImport);
+        formData.append('feature_type_slug', feature_type_slug);
         let url =
           this.state.configuration.VUE_APP_DJANGO_API_BASE +
           'import-tasks/'
diff --git a/src/views/feature_type/Feature_type_detail.vue b/src/views/feature_type/Feature_type_detail.vue
index 80e1e6eb516e735b21fd0cabc7c7ed37f8fd5b91..b872358948af2d14266505ad65aa954b9ecbe9ab 100644
--- a/src/views/feature_type/Feature_type_detail.vue
+++ b/src/views/feature_type/Feature_type_detail.vue
@@ -267,6 +267,7 @@ export default {
         return "integer";
       } else if (
         type === "string" &&
+        ['/', ':', '-'].some(el => prop.includes(el)) && // check for chars found in datestring
         date instanceof Date &&
         !isNaN(date.valueOf())
       ) {
@@ -288,24 +289,22 @@ export default {
       });
       for (const feature of json.features) {
         for (const { name, field_type, options } of fields) {
-          //* check if custom field is present
-          if (!(name in feature.properties)) {
-            return false;
-          }
-          const fieldInFeature = feature.properties[name];
-          const customType = this.transformProperties(fieldInFeature);
-          //* if custom field value is not null, then check validity of field
-          if (fieldInFeature !== null) {
-            //* if field type is list, it's not possible to guess from value type
-            if (field_type === "list") {
-              //*then check if the value is an available option
-              if (!options.includes(fieldInFeature)) {
+          if (name in feature.properties) {
+            const fieldInFeature = feature.properties[name];
+            const customType = this.transformProperties(fieldInFeature);
+            //* if custom field value is not null, then check validity of field
+            if (fieldInFeature !== null) {
+              //* if field type is list, it's not possible to guess from value type
+              if (field_type === "list") {
+                //*then check if the value is an available option
+                if (!options.includes(fieldInFeature)) {
+                  return false;
+                }
+              } else if (customType !== field_type) {
+                //* check if custom field value match
+                this.importError = `Le fichier est invalide: Un champ de type ${field_type} ne peut pas avoir la valeur [ ${fieldInFeature} ]`;
                 return false;
               }
-            } else if (customType !== field_type) {
-              //* check if custom field value match
-              this.importError = `Le fichier est invalide: Un champ de type ${field_type} ne peut pas avoir la valeur [ ${fieldInFeature} ]`;
-              return false;
             }
           }
         }
@@ -331,7 +330,7 @@ export default {
     },
 
     importGeoJson() {
-      this.$store.dispatch("feature_type/SEND_FEATURES_FROM_GEOJSON", {
+      this.$store.dispatch('feature_type/SEND_FEATURES_FROM_GEOJSON', {
         slug: this.$route.params.slug,
         feature_type_slug: this.$route.params.feature_type_slug,
         fileToImport: this.fileToImport,