diff --git a/src/api/file-proxy.api.js b/src/api/file-proxy.api.js
index 8a0c5fd8b..426a0f7f7 100644
--- a/src/api/file-proxy.api.js
+++ b/src/api/file-proxy.api.js
@@ -16,11 +16,22 @@ export function transformFileUrl(fileUrl) {
     }
     // copy from https://github.com/geoadmin/mf-geoadmin3/blob/master/src/components/UrlUtilsService.js#L59-L69
     const parts = /^(http|https)(:\/\/)(.+)/.exec(fileUrl)
+    if (parts?.length < 4) {
+        return null
+    }
     const protocol = parts[1]
     const resource = parts[3]
     return `${protocol}/${encodeURIComponent(resource)}`
 }
 
+export function proxifyUrl(url) {
+    const fileAsPath = transformFileUrl(url)
+    if (!fileAsPath) {
+        throw new Error(`Malformed URL: ${url}, can't proxify`)
+    }
+    return `${API_SERVICE_PROXY_BASE_URL}${fileAsPath}`
+}
+
 /**
  * Get a file through our service-proxy backend, taking care of CORS headers in the process.
  *
@@ -35,22 +46,25 @@ export function transformFileUrl(fileUrl) {
 export default function getFileThroughProxy(fileUrl, options = {}) {
     const { timeout = null } = options
     return new Promise((resolve, reject) => {
-        const fileAsPath = transformFileUrl(fileUrl)
-        if (!fileAsPath) {
-            reject(new Error(`Malformed file URL: ${fileUrl}`))
-            return
-        }
-        axios({
-            method: 'get',
-            url: `${API_SERVICE_PROXY_BASE_URL}${fileAsPath}`,
-            timeout,
-        })
-            .then((response) => {
-                resolve(response)
-            })
-            .catch((error) => {
-                log.error('Error while accessing file URL through service-proxy', fileUrl, error)
-                reject(error)
+        try {
+            axios({
+                method: 'get',
+                url: proxifyUrl(fileUrl),
+                timeout,
             })
+                .then((response) => {
+                    resolve(response)
+                })
+                .catch((error) => {
+                    log.error(
+                        'Error while accessing file URL through service-proxy',
+                        fileUrl,
+                        error
+                    )
+                    reject(error)
+                })
+        } catch (error) {
+            reject(error)
+        }
     })
 }
diff --git a/src/store/plugins/load-gpx-data.plugin.js b/src/store/plugins/load-gpx-data.plugin.js
index 119503121..2c3f2579b 100644
--- a/src/store/plugins/load-gpx-data.plugin.js
+++ b/src/store/plugins/load-gpx-data.plugin.js
@@ -6,6 +6,7 @@
 import axios from 'axios'
 import GPX from 'ol/format/GPX'
 
+import { proxifyUrl } from '@/api/file-proxy.api'
 import GPXLayer from '@/api/layers/GPXLayer.class'
 import log from '@/utils/logging'
 
@@ -19,7 +20,7 @@ const dispatcher = { dispatcher: 'load-gpx-data.plugin' }
 async function loadGpx(store, gpxLayer) {
     log.debug(`Loading data for added GPX layer`, gpxLayer)
     try {
-        const response = await axios.get(gpxLayer.gpxFileUrl)
+        const response = await axios.get(proxifyUrl(gpxLayer.gpxFileUrl))
         const gpxContent = response.data
         const gpxParser = new GPX()
         const metadata = gpxParser.readMetadata(gpxContent)
diff --git a/src/utils/legacyLayerParamUtils.js b/src/utils/legacyLayerParamUtils.js
index 1714d3efc..ee52e2ffc 100644
--- a/src/utils/legacyLayerParamUtils.js
+++ b/src/utils/legacyLayerParamUtils.js
@@ -1,6 +1,7 @@
 import { getKmlMetadataByAdminId } from '@/api/files.api'
 import ExternalWMSLayer from '@/api/layers/ExternalWMSLayer.class'
 import ExternalWMTSLayer from '@/api/layers/ExternalWMTSLayer.class'
+import GPXLayer from '@/api/layers/GPXLayer.class'
 import KMLLayer from '@/api/layers/KMLLayer.class'
 import storeSyncConfig from '@/router/storeSync/storeSync.config'
 import log from '@/utils/logging'
@@ -112,6 +113,10 @@ export function getLayersFromLegacyUrlParams(
             const [_layerType, url] = layerId.split('||')
             layer = new KMLLayer({ kmlFileUrl: url, visible: true })
         }
+        if (layerId.startsWith('GPX||')) {
+            const [_layerType, url] = layerId.split('||')
+            layer = new GPXLayer({ gpxFileUrl: url, visible: true })
+        }
         if (layerId.startsWith('WMTS||')) {
             const [_layerType, id, url] = layerId.split('||')
             if (layerId && url) {
diff --git a/tests/cypress/tests-e2e/importToolFile.cy.js b/tests/cypress/tests-e2e/importToolFile.cy.js
index 852d30b78..e3dce56be 100644
--- a/tests/cypress/tests-e2e/importToolFile.cy.js
+++ b/tests/cypress/tests-e2e/importToolFile.cy.js
@@ -1,5 +1,7 @@
 /// <reference types="cypress" />
 
+import { proxifyUrl } from '@/api/file-proxy.api.js'
+
 describe('The Import File Tool', () => {
     it('Import KML file', () => {
         cy.goToMapView({}, true)
@@ -501,7 +503,7 @@ describe('The Import File Tool', () => {
         cy.log('Test online import')
         const validOnlineUrl = 'http://example.com/valid-gpx-file.gpx'
         const gpxOnlineLayerId = `GPX|${validOnlineUrl}`
-        cy.intercept('GET', validOnlineUrl, {
+        cy.intercept('GET', proxifyUrl(validOnlineUrl), {
             fixture: gpxFileFixture,
         }).as('getGpxFile')