If the remote repository contain "/" in the end of the url the output of the storage rest API the download url will contain 2 slashes as the following screenshot :
Steps to reproduce :
1. Quick install Maven repository
2.Change the remote repository (jcenter) and add / to the url (e.g. http://jcenter.bintray.com/)
3. Use the rest api as the following :
curl -H "X-JFrog-Art-Api:$API_KEY" -X GET "https://localhost:8081/artifactory/api/storage/jcenter-cache/AbsFrame/Frame/1.0.7/Frame-1.0.7-javadoc.jar"
As the following screenshot the remoteURL contain 2 slash :