If a web browser starts loading the web page but it never finishes loading it, look for the resources being loaded and the debug errors in F12 Developer Tools.
If the page has an iframe, try testing the page after removing the iframe. If it works without the iframe, then look for further leads to narrow the issue down.
If you want to test ASP.NET functionality in a web server, feel free to use the code below. This is the easiest way of making sure IIS can render ASPX pages.
SameSite cookie prevents cross-site request forgery (CSRF) attacks by restricting the usage of third-party resources in web applications. Resource examples are the URLs in GET, POST, link, iframe, Ajax, image etc. If a URL is different than the actual web application’s URL, it means that it’s a third-party resource.
We have recently upgrade a .NET Core 2.2 application to 3.1 version. While trying to run it in Visual Studio, we came across “rzc discover exited” and “hostpolicy.dll required” errors:
rzc discover exited with code -2147450749A fatal error was encountered. The library 'hostpolicy.dll' required to execute the application was not found in [path]
Visual Studio makes it easy to run your application project by using IIS installed in Windows. You don’t have to explicitly go to IIS Manager and deploy your application there. You can simply click the “Run” (green arrow) icon to view your project on browser.
If you don’t want to store confidential information in your application’s code or configuration files, you can use Azure Key Vault. It’s FIPS 140-2 validated and easy to use.
U.S. government has a standard to define minimum security requirements for cryptographic modules used in applications. The name of this standard is FIPS (Federal Information Processing Standard). The newest version of the standard is currently FIPS 140-2.
IIS relies on libraries that contains functions to host ASP.NET, PHP or other types of web applications. If a library is missing or corrupt in the server, your application may not function properly and throw an error such as “The program can’t start because MSVCR71.dll is missing“.
There are two ways to reference a file in your code: Using an absolute path (Ex: /folder/file) or using a relative path (Ex: ../folder/file). If you use a relative path in your ASP code but your IIS server is not configured properly, you may come across to “Disallowed Parent Path” error (ASP 0131 ASP_LOG_ERROR).