diff --git a/extensions/cornerstone/src/initWADOImageLoader.js b/extensions/cornerstone/src/initWADOImageLoader.js
index 218e3e9d8..df8357a3e 100644
--- a/extensions/cornerstone/src/initWADOImageLoader.js
+++ b/extensions/cornerstone/src/initWADOImageLoader.js
@@ -52,7 +52,7 @@ export default function initWADOImageLoader(
       // we should set this flag to false.
       convertFloatPixelDataToInt: false,
     },
-    beforeSend: function (xhr) {
+    beforeSend: function(xhr) {
       const headers = UserAuthenticationService.getAuthorizationHeader();
 
       // Request:
@@ -61,7 +61,9 @@ export default function initWADOImageLoader(
       // For now we use image/jls and image/x-jls because some servers still use the old type
       // http://dicom.nema.org/medical/dicom/current/output/html/part18.html
       const xhrRequestHeaders = {
-        Accept: (appConfig.ommitQuotationFromMultipartRequest) ? 'multipart/related; type=application/octet-stream' : 'multipart/related; type="application/octet-stream"'
+        Accept: appConfig.omitQuotationForMultipartRequest
+          ? 'multipart/related; type=application/octet-stream'
+          : 'multipart/related; type="application/octet-stream"',
         // 'multipart/related; type="image/x-jls", multipart/related; type="image/jls"; transfer-syntax="1.2.840.10008.1.2.4.80", multipart/related; type="image/x-jls", multipart/related; type="application/octet-stream"; transfer-syntax=*',
       };
 
diff --git a/platform/viewer/public/config/aws.js b/platform/viewer/public/config/aws.js
index a4da1a57d..2919ae604 100644
--- a/platform/viewer/public/config/aws.js
+++ b/platform/viewer/public/config/aws.js
@@ -4,6 +4,8 @@ window.config = {
   extensions: [],
   modes: [],
   showStudyList: true,
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   // filterQueryParam: false,
   dataSources: [
     {
diff --git a/platform/viewer/public/config/default.js b/platform/viewer/public/config/default.js
index 703d5eef0..8ec2db8ca 100644
--- a/platform/viewer/public/config/default.js
+++ b/platform/viewer/public/config/default.js
@@ -5,6 +5,8 @@ window.config = {
   modes: [],
   showStudyList: true,
   maxNumberOfWebWorkers: 3,
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   maxNumRequests: {
     interaction: 100,
     thumbnail: 75,
diff --git a/platform/viewer/public/config/demo.js b/platform/viewer/public/config/demo.js
index 3faf66f5d..e97a7f6d0 100644
--- a/platform/viewer/public/config/demo.js
+++ b/platform/viewer/public/config/demo.js
@@ -2,6 +2,8 @@ window.config = {
   routerBasename: '/',
   extensions: [],
   showStudyList: true,
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   servers: {
     dicomWeb: [
       {
diff --git a/platform/viewer/public/config/dicomweb-server.js b/platform/viewer/public/config/dicomweb-server.js
index 81d11db14..01704a299 100644
--- a/platform/viewer/public/config/dicomweb-server.js
+++ b/platform/viewer/public/config/dicomweb-server.js
@@ -4,6 +4,8 @@ window.config = {
   extensions: [],
   modes: [],
   showStudyList: true,
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   // filterQueryParam: false,
   dataSources: [
     {
diff --git a/platform/viewer/public/config/dicomweb_relative.js b/platform/viewer/public/config/dicomweb_relative.js
index a408d351e..39ddb06bc 100644
--- a/platform/viewer/public/config/dicomweb_relative.js
+++ b/platform/viewer/public/config/dicomweb_relative.js
@@ -5,6 +5,8 @@ window.config = {
   modes: [],
   showStudyList: true,
   maxNumberOfWebWorkers: 3,
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   // filterQueryParam: false,
   dataSources: [
     {
diff --git a/platform/viewer/public/config/docker_nginx-orthanc.js b/platform/viewer/public/config/docker_nginx-orthanc.js
index 281b7f920..0b8470c65 100644
--- a/platform/viewer/public/config/docker_nginx-orthanc.js
+++ b/platform/viewer/public/config/docker_nginx-orthanc.js
@@ -3,6 +3,8 @@ window.config = {
   showStudyList: true,
   extensions: [],
   modes: [],
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   dataSources: [
     {
       friendlyName: 'Orthanc Server',
diff --git a/platform/viewer/public/config/docker_openresty-orthanc-keycloak.js b/platform/viewer/public/config/docker_openresty-orthanc-keycloak.js
index a872f4a44..aad077655 100644
--- a/platform/viewer/public/config/docker_openresty-orthanc-keycloak.js
+++ b/platform/viewer/public/config/docker_openresty-orthanc-keycloak.js
@@ -1,6 +1,8 @@
 window.config = {
   routerBasename: '/',
   showStudyList: true,
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   servers: {
     // This is an array, but we'll only use the first entry for now
     dicomWeb: [
diff --git a/platform/viewer/public/config/docker_openresty-orthanc.js b/platform/viewer/public/config/docker_openresty-orthanc.js
index 7f768e279..e19ad8997 100644
--- a/platform/viewer/public/config/docker_openresty-orthanc.js
+++ b/platform/viewer/public/config/docker_openresty-orthanc.js
@@ -3,6 +3,8 @@ window.config = {
   showStudyList: true,
   extensions: [],
   modes: [],
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   dataSources: [
     {
       friendlyName: 'Orthanc Server',
diff --git a/platform/viewer/public/config/e2e.js b/platform/viewer/public/config/e2e.js
index f8a0373f6..914b5e9ac 100644
--- a/platform/viewer/public/config/e2e.js
+++ b/platform/viewer/public/config/e2e.js
@@ -4,6 +4,8 @@ window.config = {
   extensions: [],
   modes: [],
   showStudyList: true,
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   // filterQueryParam: false,
   dataSources: [
     {
diff --git a/platform/viewer/public/config/google.js b/platform/viewer/public/config/google.js
index fbd9d28c1..2e4b4d30c 100644
--- a/platform/viewer/public/config/google.js
+++ b/platform/viewer/public/config/google.js
@@ -1,6 +1,8 @@
 window.config = {
   routerBasename: '/',
   enableGoogleCloudAdapter: false,
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   // This is an array, but we'll only use the first entry for now
   oidc: [
     {
diff --git a/platform/viewer/public/config/idc.js b/platform/viewer/public/config/idc.js
index 07c9383c6..e7785e8d2 100644
--- a/platform/viewer/public/config/idc.js
+++ b/platform/viewer/public/config/idc.js
@@ -1,6 +1,8 @@
 window.config = {
   routerBasename: '/',
   enableGoogleCloudAdapter: true,
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   servers: {
     // This is an array, but we'll only use the first entry for now
     dicomWeb: [],
diff --git a/platform/viewer/public/config/local_dcm4chee.js b/platform/viewer/public/config/local_dcm4chee.js
index 561c582f6..5de1aaba6 100644
--- a/platform/viewer/public/config/local_dcm4chee.js
+++ b/platform/viewer/public/config/local_dcm4chee.js
@@ -3,6 +3,8 @@ window.config = {
   showStudyList: true,
   extensions: [],
   modes: [],
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   dataSources: [
     {
       friendlyName: 'DCM4CHEE Server',
diff --git a/platform/viewer/public/config/local_static.js b/platform/viewer/public/config/local_static.js
index 342b166b9..aab7a3df6 100644
--- a/platform/viewer/public/config/local_static.js
+++ b/platform/viewer/public/config/local_static.js
@@ -5,6 +5,8 @@ window.config = {
   modes: [],
   showStudyList: true,
   maxNumberOfWebWorkers: 3,
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   // filterQueryParam: false,
   dataSources: [
     {
diff --git a/platform/viewer/public/config/netlify.js b/platform/viewer/public/config/netlify.js
index 237704cbf..808b36efb 100644
--- a/platform/viewer/public/config/netlify.js
+++ b/platform/viewer/public/config/netlify.js
@@ -4,6 +4,8 @@ window.config = {
   extensions: [],
   modes: [],
   showStudyList: true,
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   // filterQueryParam: false,
   dataSources: [
     {
diff --git a/platform/viewer/public/config/public_dicomweb.js b/platform/viewer/public/config/public_dicomweb.js
index 61999fe82..70f305e35 100644
--- a/platform/viewer/public/config/public_dicomweb.js
+++ b/platform/viewer/public/config/public_dicomweb.js
@@ -1,6 +1,8 @@
 window.config = {
   routerBasename: '/',
   showStudyList: true,
+  // below flag is for performance reasons, but it might not work for all servers
+  omitQuotationForMultipartRequest: true,
   servers: {
     dicomWeb: [
       {