# WSE Load Balancer 4.5 (17275) CORS policy for XMLHttpRequest? **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [November 3, 2021, 5:59pm UTC](https://community.wowza.com/t/wse-load-balancer-4-5-17275-cors-policy-for-xmlhttprequest/94064 "2021-11-03T17:59:49Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Randal\_Sims](https://avatars.discourse-cdn.com/v4/letter/r/ecccb3/32.png) [@Randal\_Sims](https://community.wowza.com/u/Randal_Sims)\ **Post date:** [November 3, 2021, 5:59pm UTC](https://community.wowza.com/t/wse-load-balancer-4-5-17275-cors-policy-for-xmlhttprequest/94064/1 "2021-11-03T17:59:49Z")
I looked at [Load Balancer module CORS header](http://community.wowza.com/t/load-balancer-module-cors-header/39039) which refers to Load Balancer 4.0 . But, what is the proper method for handing CORS in Load Balancer 4.5? I am running WSE 4.8.15+3 (build 20211022114044) on Windows Server 2016 with Java Version 9.0.4 .and following the WowzaPlayer example in the 4.5 distribution. Typically, I am dealing with a request “blocked by CORS policy : No Access-Control-Allow-Origin header is present on the requested resource”. ---
**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\ **Post date:** [November 3, 2021, 9:40pm UTC](https://community.wowza.com/t/wse-load-balancer-4-5-17275-cors-policy-for-xmlhttprequest/94064/2 "2021-11-03T21:40:47Z")
Hi @Randal_Sims Do you have a valid Wowza Player license? We stopped issuing those in April of 2020. It will work if you had one before that date, but I think that is Step 1 in debugging. Can you let me know? ---
**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\ **Post date:** [November 3, 2021, 9:41pm UTC](https://community.wowza.com/t/wse-load-balancer-4-5-17275-cors-policy-for-xmlhttprequest/94064/3 "2021-11-03T21:41:29Z")
> [@BEING DISCONTINUED! Wowza Player, Wowza GoCoder SDK, & ULL](http://community.wowza.com/t/being-discontinued-wowza-player-wowza-gocoder-sdk-ull/54923): > > Wowza Player, Wowza GoCoder SDK, and the technology powering the Ultra Low Latency service in Wowza Streaming Cloud will no longer be available on January 5, 2021. It is important that you know that Wowza Player, the GoCoder SDK and ULL is only available to current customers who registered for a license key prior to April 2, 2020. Note: This is not the same as a Wowza Streaming Engine or Wowza Streaming Cloud license key). In order to bring you the best solutions platform now and in the futur… ---
**Author:** ![Randal\_Sims](https://avatars.discourse-cdn.com/v4/letter/r/ecccb3/32.png) [@Randal\_Sims](https://community.wowza.com/u/Randal_Sims)\ **Post date:** [November 3, 2021, 10:34pm UTC](https://community.wowza.com/t/wse-load-balancer-4-5-17275-cors-policy-for-xmlhttprequest/94064/4 "2021-11-03T22:34:25Z")
No, I do not have a valid Wowza Player license. I am just using the Wowza Player html + javascript in the Load Balancer 4.5 distribution as a guide for working on other players. I am using Video.js as an interim solution while procuring a license for THEOplayer. Thanks for your kind follow-up. ---
**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\ **Post date:** [November 4, 2021, 10:37pm UTC](https://community.wowza.com/t/wse-load-balancer-4-5-17275-cors-policy-for-xmlhttprequest/94064/5 "2021-11-04T22:37:46Z")
Ok, well perhaps we can assist you through a support ticket where we can review your code? Here is a doc to make sure you don’t get that CORS policy error: [https://www.wowza.com/docs/how-to-enable-cross-origin-resource-sharing-cors-for-http-based-streams](https://www.wowza.com/docs/how-to-enable-cross-origin-resource-sharing-cors-for-http-based-streams) I’m not sure how that works with the load balancer though, but an engineer will in a ticket. Sorry, I couldn’t be of more help.