> ## Documentation Index > Fetch the complete documentation index at: https://moengage.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Why Is Web Personalization in a Loading State? > Fix web personalization loading issues in MoEngage caused by Content Security Policy restrictions. Learn which URLs need to be whitelisted first. ## Problem There is an issue with the web personalization functionality. The web personalization editor fails to load, and numerous errors are observed in the console. The loading process stops responding. ## Cause This error occurs when you have not whitelisted the suggested URLs from your end according to the [Content Security Policy and impact on Personalization](/docs/user-guide/personalize/things-to-know/content-security-policy-and-impact-on-personalization) documentation.