diff --git a/umap/models.py b/umap/models.py
index 31c1b01a..6cd032ae 100644
--- a/umap/models.py
+++ b/umap/models.py
@@ -443,6 +443,8 @@ class DataLayer(NamedModel):
             "name": self.name,
             "displayOnLoad": self.display_on_load,
         }
+        if self.old_id:
+            obj["old_id"] = self.old_id
         obj["id"] = self.pk
         obj["permissions"] = {"edit_status": self.edit_status}
         obj["editMode"] = "advanced" if self.can_edit(user, request) else "disabled"
diff --git a/umap/static/umap/js/umap.js b/umap/static/umap/js/umap.js
index 1b7ff197..a380ded6 100644
--- a/umap/static/umap/js/umap.js
+++ b/umap/static/umap/js/umap.js
@@ -69,13 +69,13 @@ U.Map = L.Map.extend({
     this.options.zoomControl = zoomControl !== undefined ? zoomControl : true
     this.options.fullscreenControl =
       fullscreenControl !== undefined ? fullscreenControl : true
-    this.datalayersOnLoad = L.Util.queryString('datalayers')
-    if (this.datalayersOnLoad) {
-      this.datalayersOnLoad = this.datalayersOnLoad.toString().split(',')
+    this.datalayersFromQueryString = L.Util.queryString('datalayers')
+    if (this.datalayersFromQueryString) {
+      this.datalayersFromQueryString = this.datalayersFromQueryString
+        .toString()
+        .split(',')
     }
 
-    if (L.Browser.ielt9) this.options.editMode = 'disabled' // TODO include ie9
-
     let editedFeature = null
     const self = this
     try {
@@ -1527,7 +1527,9 @@ U.Map = L.Map.extend({
       metadataFields = ['options.name', 'options.description'],
       title = L.DomUtil.create('h3', '', container)
     title.textContent = L._('Edit map properties')
-    const builder = new U.FormBuilder(this, metadataFields, {className: 'map-metadata'})
+    const builder = new U.FormBuilder(this, metadataFields, {
+      className: 'map-metadata',
+    })
     const form = builder.build()
     container.appendChild(form)
     this._editControls(container)
diff --git a/umap/static/umap/js/umap.layer.js b/umap/static/umap/js/umap.layer.js
index 8624597c..1ae0b1ac 100644
--- a/umap/static/umap/js/umap.layer.js
+++ b/umap/static/umap/js/umap.layer.js
@@ -609,12 +609,13 @@ U.DataLayer = L.Evented.extend({
   },
 
   autoLoaded: function () {
-    return (
-      (this.map.datalayersOnLoad &&
-        this.umap_id &&
-        this.map.datalayersOnLoad.indexOf(this.umap_id.toString()) !== -1) ||
-      (!this.map.datalayersOnLoad && this.options.displayOnLoad)
-    )
+    if (!this.map.datalayersFromQueryString) return this.options.displayOnLoad
+    const datalayerIds = this.map.datalayersFromQueryString
+    let loadMe = datalayerIds.includes(this.umap_id.toString())
+    if (this.options.old_id) {
+      loadMe = loadMe || datalayerIds.includes(this.options.old_id.toString())
+    }
+    return loadMe
   },
 
   insertBefore: function (other) {
diff --git a/umap/tests/integration/test_datalayer.py b/umap/tests/integration/test_datalayer.py
index 946bae9d..da4ec622 100644
--- a/umap/tests/integration/test_datalayer.py
+++ b/umap/tests/integration/test_datalayer.py
@@ -106,3 +106,25 @@ def test_should_honour_color_variable(live_server, map, page):
     expect(page.locator(".leaflet-overlay-pane path[fill='tomato']"))
     markers = page.locator(".leaflet-marker-icon .icon_container")
     expect(markers).to_have_css("background-color", "rgb(240, 248, 255)")
+
+
+def test_datalayers_in_query_string(live_server, datalayer, map, page):
+    with_old_id = DataLayerFactory(old_id=134, map=map, name="with old id")
+    set_options(with_old_id, name="with old id")
+    visible = page.locator(".leaflet-control-browse li:not(.off) span")
+    hidden = page.locator(".leaflet-control-browse li.off span")
+    page.goto(f"{live_server.url}{map.get_absolute_url()}")
+    expect(visible).to_have_count(2)
+    expect(hidden).to_have_count(0)
+    page.goto(f"{live_server.url}{map.get_absolute_url()}?datalayers={datalayer.pk}")
+    expect(visible).to_have_count(1)
+    expect(visible).to_have_text(datalayer.name)
+    expect(hidden).to_have_count(1)
+    expect(hidden).to_have_text(with_old_id.name)
+    page.goto(
+        f"{live_server.url}{map.get_absolute_url()}?datalayers={with_old_id.old_id}"
+    )
+    expect(visible).to_have_count(1)
+    expect(visible).to_have_text(with_old_id.name)
+    expect(hidden).to_have_count(1)
+    expect(hidden).to_have_text(datalayer.name)