If your application environment supports debugging mode, you may be able to set a breakpoint in the proxy page and detect whether it is operating correctly. If not, you may need to troubleshoot the proxy. In other words, all HTTP/HTTPS requests should return with a valid response and no requests should fail. The application should function normally as it did before the proxy page was implemented. Once you have configured the proxy page with the application, test the application to ensure that requests are processed correctly. If all requests in your application use the same proxy, specify the location using the request object's proxy Url property.ģ - Testing and deploying the application
#Proxie page code#
In order for your application to route requests through the proxy, you must add code to your application defining the location of where the proxy is hosted. Steps to working with the proxy 1 - Get or build a third-party proxyĪ proxy is installed and runs on its own web server, not on an Esri server or on the computer where ArcGIS Enterprise is installed, (unless your web server also hosts the ArcGIS Enterprise instance). By adding this, the application has a fallback mechanism in place in case the service request fails due to lack of CORS support. This proxy can be referenced within the application via the proxyUrl. If this is not the case, or you are unsure as to whether CORS is supported, a proxy should be configured within the application. ArcGIS Enterprise services, WMS and WMTS services, etc.), the web server being accessed needs to support CORS. Regardless of the type of data you are accessing (e.g. If CORS is not enabled on a web server a proxy is needed to bypass security on these resources.Īll requests via esriRequest assume CORS support. This was helpful as it was used to bypass the issue many applications had when accessing resources that were not on the same origin. This topic specifically discusses working with proxies, additional information on working with CORS can be found in the CORS guide topic.ĬORS is now the preferred method for accessing cross-domain resources.īefore CORS, it was necessary to work with a proxy page.
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