Problem & Symptoms
If you install WProofreader directly on the server with Apache Tomcat, and your application and WProofreader are located in different domains, for example, webspellchecker.com and webspellchecker.net, a CORS issue may occur. To solve this issue, add the Access-Control-Allow-Headers to enable cross-control requests to the Apache Tomcat settings.
For detailed instructions, refer to the CORS filter description. Note that the description varies depending on the Apache Tomcat version used.
Solution
To solve the issue, add the required headers when installing WProofreader on Apache Tomcat and setting up the binding of the static files and serving service requests by AppServer. Refer to Option A: Binding of Static Files and Serving Service Requests by AppServer for details.
