diff --git a/bbb-common-web/src/main/java/org/bigbluebutton/api/model/shared/GetChecksum.java b/bbb-common-web/src/main/java/org/bigbluebutton/api/model/shared/GetChecksum.java
index c1df483052..952de208c9 100755
--- a/bbb-common-web/src/main/java/org/bigbluebutton/api/model/shared/GetChecksum.java
+++ b/bbb-common-web/src/main/java/org/bigbluebutton/api/model/shared/GetChecksum.java
@@ -8,8 +8,7 @@ import javax.validation.constraints.NotEmpty;
 
 @GetChecksumConstraint(groups = ChecksumValidationGroup.class)
 public class GetChecksum extends Checksum {
-
-    @NotEmpty(message = "You must provide the query string")
+    
     private String queryString;
 
     public GetChecksum(String apiCall, String checksum, String queryString, HttpServletRequest request) {
diff --git a/bbb-common-web/src/main/java/org/bigbluebutton/api/model/validator/GetChecksumValidator.java b/bbb-common-web/src/main/java/org/bigbluebutton/api/model/validator/GetChecksumValidator.java
index 62638e4f77..1395348ba0 100755
--- a/bbb-common-web/src/main/java/org/bigbluebutton/api/model/validator/GetChecksumValidator.java
+++ b/bbb-common-web/src/main/java/org/bigbluebutton/api/model/validator/GetChecksumValidator.java
@@ -24,18 +24,6 @@ public class GetChecksumValidator implements ConstraintValidator<GetChecksumCons
         String securitySalt = ServiceUtils.getValidationService().getSecuritySalt();
         String supportedChecksumAlgorithms = ServiceUtils.getValidationService().getSupportedChecksumAlgorithms();
 
-        HttpServletRequest request = checksum.getRequest();
-        boolean queryStringPresent = request.getQueryString() != null && !request.getQueryString().isEmpty();
-        boolean requestBodyPresent = request.getContentLength() > 0;
-
-        String contentType = request.getContentType();
-        log.info("Request content type: {}", contentType);
-        if (contentType != null) {
-            if (contentType.equalsIgnoreCase(MediaType.APPLICATION_FORM_URLENCODED) || contentType.equalsIgnoreCase(MediaType.MULTIPART_FORM_DATA)) {
-                if (queryStringPresent && requestBodyPresent) return false;
-            }
-        }
-
         if (securitySalt.isEmpty()) {
             log.warn("Security is disabled in this service. Make sure this is intentional.");
             return true;
diff --git a/bbb-common-web/src/main/java/org/bigbluebutton/api/service/ValidationService.java b/bbb-common-web/src/main/java/org/bigbluebutton/api/service/ValidationService.java
index 481ea7b665..bba230759e 100755
--- a/bbb-common-web/src/main/java/org/bigbluebutton/api/service/ValidationService.java
+++ b/bbb-common-web/src/main/java/org/bigbluebutton/api/service/ValidationService.java
@@ -113,10 +113,6 @@ public class ValidationService {
             checksumValue = params.get("checksum")[0];
         }
 
-        if(queryString == null || queryString.isEmpty()) {
-            queryString = buildQueryStringFromParamsMap(params);
-        }
-
         switch(apiCall.requestType) {
             case GET:
                 checksum = new GetChecksum(apiCall.getName(), checksumValue, queryString, servletRequest);
diff --git a/bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/UrlMappings.groovy b/bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/UrlMappings.groovy
index 5390a8dae8..2a6aab198c 100755
--- a/bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/UrlMappings.groovy
+++ b/bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/UrlMappings.groovy
@@ -63,6 +63,10 @@ class UrlMappings {
       action = [GET: 'downloadFile']
     }
 
+    "/bigbluebutton/api/join"(controller: "api") {
+      action = [GET: 'join']
+    }
+
     "/bigbluebutton/api/getMeetings"(controller: "api") {
       action = [GET: 'getMeetingsHandler', POST: 'getMeetingsHandler']
     }