diff --git a/python/schemes/DRMToday.py b/python/schemes/DRMToday.py
index e99d6cb..3cf5675 100644
--- a/python/schemes/DRMToday.py
+++ b/python/schemes/DRMToday.py
@@ -1,7 +1,4 @@
-res = await (await pyfetch(licUrl,
-    method="POST",
-    headers=licHeaders,
-    body=challenge
-)).json()
+res = await corsFetch(licUrl, "POST", licHeaders, challenge, "json")
+
 licence = res['license']
 
diff --git a/python/schemes/GlobalTV.py b/python/schemes/GlobalTV.py
index 116382d..4497794 100644
--- a/python/schemes/GlobalTV.py
+++ b/python/schemes/GlobalTV.py
@@ -1,8 +1,5 @@
 payload = loadBody("json")
 challengeArr = list(challenge)
 payload['license_request_data']=challengeArr
-licence = await (await pyfetch(licUrl,
-    method="POST",
-    headers=licHeaders,
-    body=json.dumps(payload)
-)).bytes()
+
+licence = await corsFetch(licUrl, "POST", licHeaders, payload, "blob")
diff --git a/python/schemes/NosTV.py b/python/schemes/NosTV.py
index 1ef2b5b..7a354d6 100644
--- a/python/schemes/NosTV.py
+++ b/python/schemes/NosTV.py
@@ -1,7 +1,4 @@
 b64challenge = base64.b64encode(challenge).decode()
-res = await (await pyfetch(licUrl,
-    method="POST",
-    headers=licHeaders,
-    body=json.dumps({"challenge": b64challenge})
-)).json()
+res = await corsFetch(licUrl, "POST", licHeaders, {"challenge": b64challenge}, "json")
+
 licence = res["license"][0]
diff --git a/python/schemes/Polsat.py b/python/schemes/Polsat.py
index ecf02b9..cdadc05 100644
--- a/python/schemes/Polsat.py
+++ b/python/schemes/Polsat.py
@@ -1,9 +1,6 @@
 payload = loadBody("json")
 challengeB64 = base64.b64encode(challenge).decode()
 payload['params']['object'] = challengeB64
-licence = await (await pyfetch(licUrl,
-    method="POST",
-    headers=licHeaders,
-    body=json.dumps(payload)
-)).json()
-licence = licence['result']['object']['license']
+res = await corsFetch(licUrl, "POST", licHeaders, payload, "json")
+
+licence = res['result']['object']['license']
diff --git a/python/schemes/thePlatform.py b/python/schemes/thePlatform.py
index 8b45ab5..1c6a8cf 100644
--- a/python/schemes/thePlatform.py
+++ b/python/schemes/thePlatform.py
@@ -1,9 +1,6 @@
 payload = loadBody("json")
 b64challenge = base64.b64encode(challenge).decode()
 payload["getWidevineLicense"]["widevineChallenge"]=b64challenge
-res = await (await pyfetch(licUrl,
-    method="POST",
-    headers=licHeaders,
-    body=json.dumps(payload)
-)).json()
+res = await corsFetch(licUrl, "POST", licHeaders, payload, "json")
+
 licence = res["getWidevineLicenseResponse"]["license"]