diff --git a/.env.example b/.env.example
index fb915b7..91af283 100644
--- a/.env.example
+++ b/.env.example
@@ -6,15 +6,17 @@ NEXTCLOUD_URL=https://cloud.domain.name
 NEXTCLOUD_PUBLIC_URL=https://cloud.domain.name
 
 # Collabora CODE
-# COLLABORA_URL: https://code:9980 när CODE delar Docker-nätverk med Node-RED
-# (integrate-into-nodered.sh connectar CODE till nodernätet automatiskt).
-# Fallback om 'code' inte kan resolvas: https://<CODE-IP>:9980.
+# COLLABORA_URL: intern CODE kör HTTP — http://code:9980 när CODE delar
+# Docker-nätverk med Node-RED (integrate-into-nodered.sh connectar CODE
+# till nodernätet automatiskt; annars: docker network connect bridge nextcloud-node-red).
+# Fallback om 'code' inte kan resolvas: http://<CODE-IP>:9980 (t.ex. 172.17.0.x).
 # ALDRIG http://127.0.0.1:9980 eller http://host.docker.internal:9980 —
-# CODE lyssnar bara på HTTPS internt och kör inte på Node-RED-värden.
-# verifyTls=false sätts i nc-collab-config-noden (self-signed cert internt).
+# CODE kör inte på Node-RED-värden.
+# Publik URL (browser/WOPI) styrs av collaboraPublicUrl i nc-collab-config,
+# t.ex. https://docs.domain.name.
 CODE_CONTAINER=code
 COLLABORA_IP=
-COLLABORA_URL=https://code:9980
+COLLABORA_URL=http://code:9980
 
 # Existing Node-RED install (integrate mode)
 NODERED_DIR=
diff --git a/README.md b/README.md
index d4670fb..9c94a9b 100644
--- a/README.md
+++ b/README.md
@@ -50,6 +50,11 @@ Palette: **nextcloud collabora** — six nodes in the same purple, all wired to
 
 `nc-collab-config` · `collabora-bridge` · `nc-office` · `collabora-convert` · `collabora-extract` · `collabora-transform` · `collabora-wopi`
 
+## Collabora URLs — intern vs publik
+
+- **Intern `collaboraUrl`** (Node-RED → CODE): plain **HTTP** — `http://code:9980` när CODE delar nätverk med Node-RED, eller fallback `http://<bridge-ip>:9980` (t.ex. `172.17.0.x`) efter `docker network connect bridge nextcloud-node-red`. Aldrig HTTPS mot bridge-IP.
+- **Publik `collaboraPublicUrl`** (browser/WOPI): `https://docs.domain.name` — CODE via reverse proxy.
+
 Full guide and examples: **[docs/NODES.md](docs/NODES.md)** · import **[flows/example-flows.json](flows/example-flows.json)**
 
 ## Install on any Nextcloud VM
diff --git a/docker-compose.yml b/docker-compose.yml
index 306e8c6..972d73b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -13,7 +13,7 @@ services:
       PORT: "1881"
       TZ: ${TZ:-Europe/Stockholm}
       NEXTCLOUD_URL: ${NEXTCLOUD_URL:-https://cloud.domain.name}
-      COLLABORA_URL: ${COLLABORA_URL:-https://code:9980}
+      COLLABORA_URL: ${COLLABORA_URL:-http://code:9980}
     extra_hosts:
       - "host.docker.internal:host-gateway"
       - "cloud.domain.name:${NC_HOST_IP:-192.168.1.10}"
diff --git a/docs/INFRASTRUCTURE.md b/docs/INFRASTRUCTURE.md
index a1be949..fb8ed8f 100644
--- a/docs/INFRASTRUCTURE.md
+++ b/docs/INFRASTRUCTURE.md
@@ -35,8 +35,10 @@ Sidecar `nextcloud-collabora-nodered` on :1881 is **not used** — integrate mod
 | Use | URL |
 |-----|-----|
 | Nextcloud API / WebDAV | `https://cloud.example.com` |
-| CODE from Node-RED container | `https://<bridge-ip>:9980` (verifyTls=false) |
-| Browser editor / WOPI | `collaboraPublicUrl` — usually same as Nextcloud proxy |
+| CODE from Node-RED container (intern) | `http://code:9980` — plain **HTTP**; fallback `http://<bridge-ip>:9980` efter `docker network connect bridge nextcloud-node-red` |
+| Browser editor / WOPI (publik) | `collaboraPublicUrl` — t.ex. `https://docs.domain.name` (CODE via reverse proxy) |
+
+Intern CODE lyssnar på HTTP — aldrig HTTPS mot bridge-IP. Publik åtkomst via reverse proxy.
 
 ## Gitea (optional)
 
diff --git a/docs/NODES.md b/docs/NODES.md
index dfda6de..cc05523 100644
--- a/docs/NODES.md
+++ b/docs/NODES.md
@@ -7,7 +7,7 @@ Six flow nodes in the palette plus one config node. All six point at the same **
 | Backend | Typical URL | Role |
 |---------|-------------|------|
 | Nextcloud | `https://cloud.example.com` | Files (WebDAV) + Office API (OCS) |
-| Collabora CODE | `https://172.17.0.2:9980` | Conversion (`/cool/...`) on Docker bridge |
+| Collabora CODE | `http://code:9980` (intern HTTP; fallback `http://<bridge-ip>:9980`) | Conversion (`/cool/...`) on Docker bridge |
 
 Auth: **username + app password**. Not your account password.
 
@@ -167,8 +167,17 @@ Create under the gear icon in Node-RED. All six flow nodes pick the same config
 | Field | Example |
 |-------|---------|
 | nextcloudUrl | `https://cloud.example.com` |
-| collaboraUrl | `https://172.17.0.2:9980` (bridge IP, verifyTls=false) |
-| collaboraPublicUrl | `https://cloud.example.com` |
+| collaboraUrl | `http://code:9980` — intern CODE är **HTTP**; fallback `http://<bridge-ip>:9980` efter `docker network connect bridge nextcloud-node-red` |
+| collaboraPublicUrl | `https://docs.domain.name` (publik, browser/WOPI) |
 | username + app password | Nextcloud login |
 
+Intern CODE körs utan TLS (`http://`) — publik åtkomst går via reverse proxy (HTTPS).
+
+### createAssetLink (assets)
+
+`collabora-bridge createAssetLink` / `nc-office assets:create` POSTar form-urlencoded
+(`path=Dokument/logotyp.png`, relativt användarens filrot) mot
+`<nextcloudUrl>/apps/richdocuments/assets`. `200 {url}` = asset-URL skapad;
+`404` = filen finns inte i användarens rot (eller fel `nextcloudUrl`) — felet innehåller status + svarskropp.
+
 CODE IP is detected when you run `./install.sh` — see `.env.example`.
diff --git a/flows/example-flows.json b/flows/example-flows.json
index 4aa016e..0cfe365 100644
--- a/flows/example-flows.json
+++ b/flows/example-flows.json
@@ -11,7 +11,7 @@
         "type": "nc-collab-config",
         "name": "cloud.domain.name",
         "nextcloudUrl": "https://cloud.domain.name",
-        "collaboraUrl": "https://172.17.0.2:9980",
+        "collaboraUrl": "http://code:9980",
         "collaboraPublicUrl": "https://cloud.domain.name",
         "username": "FILL_IN_USER",
         "verifyTls": false
diff --git a/install.sh b/install.sh
index a014316..035c560 100755
--- a/install.sh
+++ b/install.sh
@@ -35,11 +35,11 @@ NODERED_CONTAINER="${NODERED_CONTAINER:-nextcloud-node-red}"
 NODERED_PORT="${NODERED_PORT:-1880}"
 CODE_CONTAINER="${CODE_CONTAINER:-code}"
 COLLABORA_IP="${COLLABORA_IP:-}"
-# Aldrig http://127.0.0.1:9980 eller http://host.docker.internal:9980
-case "${COLLABORA_URL:-https://code:9980}" in
+# Intern CODE är HTTP. Aldrig http://127.0.0.1:9980 eller http://host.docker.internal:9980
+case "${COLLABORA_URL:-http://code:9980}" in
     http://127.0.0.1:*|http://localhost:*|http://host.docker.internal:*|\
     https://127.0.0.1:*|https://localhost:*|https://host.docker.internal:*|"")
-        COLLABORA_URL="https://code:9980" ;;
+        COLLABORA_URL="http://code:9980" ;;
     *) COLLABORA_URL="${COLLABORA_URL}" ;;
 esac
 NEXTCLOUD_URL="${NEXTCLOUD_URL:-https://cloud.domain.name}"
diff --git a/lib/bridge.js b/lib/bridge.js
index 26d7df6..23fdb02 100644
--- a/lib/bridge.js
+++ b/lib/bridge.js
@@ -2,6 +2,7 @@
 
 const { webdavGet, webdavPut, webdavPropfindFileId } = require('./webdav');
 const { ocsRequest } = require('./ocs');
+const { requestBuffer } = require('./http-client');
 const { convertTo, extractStructure, transformStructure } = require('./collabora');
 const {
     resolveDestNcPath,
@@ -210,33 +211,46 @@ async function extractToPayload(config, msg) {
 }
 
 async function createAssetLink(config, msg) {
-    const assetPath = pickMsgField(msg, 'ncPath');
+    const assetPath = pickMsgField(msg, 'ncPath', 'path');
     if (!assetPath) {
-        throw new Error('createAssetLink kräver msg.ncPath');
+        throw new Error('createAssetLink kräver msg.ncPath eller msg.path');
     }
 
-    const relPath = normalizeNcPath(assetPath);
-    const { requestBuffer } = require('./http-client');
-    const base = config.nextcloudUrl.replace(/\/$/, '');
+    // richdocuments AssetsController::create($path) läser form-parametern 'path'
+    // och slår upp filen relativt användarens filrot → ingen ledande slash.
+    const relPath = String(assetPath).trim().replace(/^\/+/, '').replace(/\/{2,}/g, '/');
+    const base = String(config.nextcloudUrl || '').replace(/\/+$/, '');
     const token = Buffer.from(`${config.username}:${config.password}`).toString('base64');
+
     const res = await requestBuffer({
-        url: `${base}/index.php/apps/richdocuments/assets`,
+        url: `${base}/apps/richdocuments/assets`,
         method: 'POST',
         headers: {
             Authorization: `Basic ${token}`,
-            'OCS-APIRequest': 'true',
-            'Content-Type': 'application/json',
-            Accept: 'application/json'
+            Accept: 'application/json',
+            'Content-Type': 'application/x-www-form-urlencoded'
         },
-        body: Buffer.from(JSON.stringify({ path: relPath }), 'utf8'),
+        body: Buffer.from(`path=${encodeURIComponent(relPath)}`, 'utf8'),
         rejectUnauthorized: config.verifyTls !== false && config.verifyTls !== 'false'
     });
 
+    const bodyText = res.body.toString('utf8').trim();
+
     if (res.statusCode < 200 || res.statusCode >= 300) {
-        throw new Error(`assets:create misslyckades (${res.statusCode})`);
+        throw new Error(
+            `assets:create misslyckades (${res.statusCode}): ${bodyText || '<tom body>'} — ` +
+            `path=${relPath}, url=${base}/apps/richdocuments/assets. ` +
+            '404 = filen saknas i användarens rot eller fel nextcloudUrl.'
+        );
+    }
+
+    let json;
+    try {
+        json = JSON.parse(bodyText);
+    } catch (e) {
+        throw new Error(`assets:create: ogiltigt JSON-svar (${res.statusCode}): ${bodyText.slice(0, 200)}`);
     }
 
-    const json = JSON.parse(res.body.toString('utf8'));
     return {
         assetUrl: json.url || json.assetUrl || json,
         ncPath: relPath
diff --git a/nodes/nc-collab-config.html b/nodes/nc-collab-config.html
index d840ecb..6c8347a 100644
--- a/nodes/nc-collab-config.html
+++ b/nodes/nc-collab-config.html
@@ -4,7 +4,7 @@
         defaults: {
             name: { value: '' },
             nextcloudUrl: { value: 'https://cloud.domain.name', required: true },
-            collaboraUrl: { value: 'https://172.17.0.2:9980', required: true },
+            collaboraUrl: { value: 'http://code:9980', required: true },
             collaboraPublicUrl: { value: 'https://cloud.domain.name' },
             username: { value: '', required: true },
             verifyTls: { value: false }
@@ -56,11 +56,11 @@
     <h4>Two backends</h4>
     <ul>
         <li><strong>Nextcloud</strong> (<code>nextcloudUrl</code>) — files via WebDAV + Office API (OCS richdocuments)</li>
-        <li><strong>Collabora CODE</strong> (<code>collaboraUrl</code>) — conversion engine (<code>/cool/...</code>). Internal Docker bridge, e.g. <code>https://172.17.0.2:9980</code>. IP is detected at install — don't hardcode blindly on every host.</li>
+        <li><strong>Collabora CODE</strong> (<code>collaboraUrl</code>) — conversion engine (<code>/cool/...</code>). Internal CODE is plain <strong>HTTP</strong>: <code>http://code:9980</code> (shared Docker network) or fallback <code>http://&lt;bridge-ip&gt;:9980</code>, e.g. <code>http://172.17.0.2:9980</code> after <code>docker network connect bridge nextcloud-node-red</code>. Never HTTPS against the internal bridge.</li>
     </ul>
 
     <p><strong>Auth:</strong> username + <em>app password</em>. Not your normal account password.</p>
-    <p><code>collaboraPublicUrl</code> — what the browser sees for WOPI/editor links (CODE proxied via Nextcloud). Internal IP won't work in an iframe.</p>
-    <p><code>verifyTls</code> — turn off for internal CODE when the cert doesn't match IP/hostname.</p>
+    <p><code>collaboraPublicUrl</code> — what the browser sees for WOPI/editor links, e.g. <code>https://docs.domain.name</code> (CODE proxied via Nextcloud/reverse proxy). Internal HTTP URLs won't work in an iframe.</p>
+    <p><code>verifyTls</code> — only relevant if you point <code>collaboraUrl</code> at an HTTPS endpoint; the default internal HTTP needs no TLS at all.</p>
     <p>Default output folder in bridge if you omit a destination: <code>/Dokument/OfficeOut/</code></p>
 </script>
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..49a382f
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,261 @@
+{
+  "name": "node-red-contrib-nextcloud-collabora",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "node-red-contrib-nextcloud-collabora",
+      "version": "1.0.0",
+      "license": "MIT",
+      "dependencies": {
+        "form-data": "^4.0.4"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
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+      "license": "MIT"
+    },
+    "node_modules/call-bind-apply-helpers": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
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+        "function-bind": "^1.1.2"
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+    "node_modules/has-tostringtag": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/has-tostringtag/-/has-tostringtag-1.0.2.tgz",
+      "integrity": "sha512-NqADB8VjPFLM2V0VvHUewwwsw0ZWBaIdgo+ieHtK3hasLz4qeCRjYcqfB6AQrBggRKppKF8L52/VqdVsO47Dlw==",
+      "license": "MIT",
+      "dependencies": {
+        "has-symbols": "^1.0.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/hasown": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/hasown/-/hasown-2.0.4.tgz",
+      "integrity": "sha512-T2UbfbBEF32wiepXIsMlTW9+dDYC6wMh/t/vYA4tuOMKqWz/n3vr1NFSxQiyP+zk2mXsoMA/i/7qV6LKut1t1A==",
+      "license": "MIT",
+      "dependencies": {
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/math-intrinsics": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
+      "integrity": "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/mime-db": {
+      "version": "1.52.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/mime-types": {
+      "version": "2.1.35",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+      "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-db": "1.52.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    }
+  }
+}
diff --git a/scripts/integrate-into-nodered.sh b/scripts/integrate-into-nodered.sh
index cedf3ff..8ec7477 100755
--- a/scripts/integrate-into-nodered.sh
+++ b/scripts/integrate-into-nodered.sh
@@ -409,15 +409,16 @@ recreate_nodered_service() {
     log "ExtraHosts (${extra}): $(docker inspect -f '{{json .HostConfig.ExtraHosts}}' "${NODERED_CONTAINER}")"
 }
 
-# COLLABORA_URL: https://code:9980 primärt, fallback https://<CODE-IP>:9980.
+# COLLABORA_URL: intern CODE är HTTP — http://code:9980 primärt,
+# fallback http://<CODE-IP>:9980.
 # Aldrig http://127.0.0.1:9980 eller http://host.docker.internal:9980.
 resolve_collabora_url() {
-    local url="${COLLABORA_URL:-https://code:9980}"
+    local url="${COLLABORA_URL:-http://code:9980}"
     case "${url}" in
         http://127.0.0.1:*|http://localhost:*|http://host.docker.internal:*|\
         https://127.0.0.1:*|https://localhost:*|https://host.docker.internal:*)
-            warn "Otillåten COLLABORA_URL '${url}' — tvingar https://code:9980"
-            url="https://code:9980"
+            warn "Otillåten COLLABORA_URL '${url}' — tvingar http://code:9980"
+            url="http://code:9980"
             ;;
     esac
 
@@ -427,8 +428,8 @@ resolve_collabora_url() {
         ip="$(docker inspect -f '{{range $k,$v := .NetworkSettings.Networks}}{{$v.IPAddress}} {{end}}' "${CODE_CONTAINER}" 2>/dev/null | awk '{print $1}')"
         [ -n "${ip}" ] || ip="${COLLABORA_IP:-}"
         if [ -n "${ip}" ]; then
-            warn "'code' inte resolvbart från ${NODERED_CONTAINER} — fallback https://${ip}:9980"
-            url="https://${ip}:9980"
+            warn "'code' inte resolvbart från ${NODERED_CONTAINER} — fallback http://${ip}:9980"
+            url="http://${ip}:9980"
         else
             die "Varken 'code'-DNS eller CODE-IP tillgänglig — kan inte sätta COLLABORA_URL"
         fi