diff --git a/roda-common/roda-common-data/src/main/java/org/roda/core/data/common/RodaConstants.java b/roda-common/roda-common-data/src/main/java/org/roda/core/data/common/RodaConstants.java
index eb07136286..e449fbbd9d 100644
--- a/roda-common/roda-common-data/src/main/java/org/roda/core/data/common/RodaConstants.java
+++ b/roda-common/roda-common-data/src/main/java/org/roda/core/data/common/RodaConstants.java
@@ -219,7 +219,7 @@ public enum DateGranularity {
   public static final String API_QUERY_KEY_ACCEPT_FORMAT = "acceptFormat";
   public static final String API_QUERY_KEY_INLINE = "inline";
   public static final String API_QUERY_KEY_JSONP_CALLBACK = "callback";
-  public static final String API_QUERY_DEFAULT_JSONP_CALLBACK = "rodaCallback";
+  public static final String API_QUERY_DEFAULT_JSONP_CALLBACK = "";
   public static final String API_QUERY_VALUE_ACCEPT_FORMAT_BIN = "bin";
   public static final String API_QUERY_VALUE_ACCEPT_FORMAT_XML = "xml";
   public static final String API_QUERY_VALUE_ACCEPT_FORMAT_HTML = "html";
diff --git a/roda-ui/roda-wui/src/main/java/org/roda/wui/api/v1/IndexResource.java b/roda-ui/roda-wui/src/main/java/org/roda/wui/api/v1/IndexResource.java
index ea28b8071a..0d42511f28 100644
--- a/roda-ui/roda-wui/src/main/java/org/roda/wui/api/v1/IndexResource.java
+++ b/roda-ui/roda-wui/src/main/java/org/roda/wui/api/v1/IndexResource.java
@@ -27,6 +27,7 @@
 import org.apache.commons.configuration.Configuration;
 import org.apache.commons.csv.CSVFormat;
 import org.apache.commons.lang3.StringUtils;
+import org.glassfish.jersey.server.JSONP;
 import org.roda.core.RodaCoreFactory;
 import org.roda.core.common.UserUtility;
 import org.roda.core.data.common.RodaConstants;
@@ -140,7 +141,8 @@ public class IndexResource {
    *           if some error occurs.
    */
   @GET
-  @Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML, ExtraMediaType.TEXT_CSV})
+  @Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML, ExtraMediaType.TEXT_CSV, ExtraMediaType.APPLICATION_JAVASCRIPT})
+  @JSONP(callback = RodaConstants.API_QUERY_DEFAULT_JSONP_CALLBACK, queryParam = RodaConstants.API_QUERY_KEY_JSONP_CALLBACK)
   @ApiOperation(value = "Find indexed resources", notes = "Find indexed resources.", response = IndexResult.class, responseContainer = "List")
   public <T extends IsIndexed> Response list(
     @ApiParam(value = "Class of resources to return", required = true, example = "org.roda.core.data.v2.ip.IndexedFile") @QueryParam(RodaConstants.API_QUERY_KEY_RETURN_CLASS) final String returnClass,
@@ -154,7 +156,8 @@ public <T extends IsIndexed> Response list(
     @ApiParam(value = "Return only active resources?", defaultValue = "true") @QueryParam(RodaConstants.API_QUERY_KEY_ONLY_ACTIVE) final Boolean onlyActive,
     @ApiParam(value = "Export facet data", defaultValue = "false") @QueryParam(RodaConstants.API_QUERY_KEY_EXPORT_FACETS) final boolean exportFacets,
     @ApiParam(value = "Filename", defaultValue = DEFAULT_CSV_FILENAME) @QueryParam(RodaConstants.API_QUERY_KEY_FILENAME) final String filename,
-    @ApiParam(value = "Choose format in which to get the response") @QueryParam(RodaConstants.API_QUERY_KEY_ACCEPT_FORMAT) String acceptFormat)
+    @ApiParam(value = "Choose format in which to get the response") @QueryParam(RodaConstants.API_QUERY_KEY_ACCEPT_FORMAT) String acceptFormat,
+    @ApiParam(value = "JSONP callback name", required = false, allowMultiple = false, defaultValue = RodaConstants.API_QUERY_DEFAULT_JSONP_CALLBACK) @QueryParam(RodaConstants.API_QUERY_KEY_JSONP_CALLBACK) String jsonpCallbackName)
     throws RODAException {
 
     final String mediaType = ApiUtils.getMediaType(acceptFormat, request);
diff --git a/roda-ui/roda-wui/src/main/java/org/roda/wui/api/v1/utils/ApiUtils.java b/roda-ui/roda-wui/src/main/java/org/roda/wui/api/v1/utils/ApiUtils.java
index 906c6cc4e6..e6aba1269b 100644
--- a/roda-ui/roda-wui/src/main/java/org/roda/wui/api/v1/utils/ApiUtils.java
+++ b/roda-ui/roda-wui/src/main/java/org/roda/wui/api/v1/utils/ApiUtils.java
@@ -84,7 +84,7 @@ private ApiUtils() {
 
   /**
    * Get media type
-   * 
+   *
    * @param acceptFormat
    *          String with required format
    * @param request
@@ -92,7 +92,11 @@ private ApiUtils() {
    * @return media type
    */
   public static String getMediaType(String acceptFormat, HttpServletRequest request) {
-    return getMediaType(acceptFormat, request.getHeader(RodaConstants.API_HTTP_HEADER_ACCEPT));
+    if(StringUtils.isBlank(acceptFormat) && StringUtils.isNotBlank(request.getParameter("callback"))){
+      return ExtraMediaType.APPLICATION_JAVASCRIPT + "; charset=UTF-8";
+    }else{
+      return getMediaType(acceptFormat, request.getHeader(RodaConstants.API_HTTP_HEADER_ACCEPT));
+    }
   }
 
   /**