Access Control Origin Header error using Axios

I'm making an API call using Axios in a React Web app. However, I'm getting this error in Chrome: > ``` XMLHttpRequest cannot load https://example.restdb.io/rest/mock-data. No 'Access-Control-Allow-Or...

11 Aug at 05:2

Are you trying to mount a directory onto a file (or vice-versa)?

I have a docker with version `17.06.0-ce`. When I trying to install NGINX using docker with command: ``` docker run -p 80:80 -p 8080:8080 --name nginx -v $PWD/www:/www -v $PWD/conf/nginx.conf:/etc/ng...

23 Aug at 21:27

Cannot load a reference assembly for execution from a Web-Site project

Using .NET 4.6.2 and an older Web-Site (not Web-Application) project. If I clear the BIN directory and then build and run it works, but sometimes after multiple builds and runs, it fails with this err...

Undo HasIndex in OnModelCreating

I am trying to configure a multi-tenancy application using Identity Framework Core. I have successfully created a custom ApplicationUser to override IdentityUser with TenantId using instructions here...

ReferenceError : window is not defined at object. <anonymous> Node.js

I've seen similar questions that were asked here but none matches my situation. In my web I have 3 `JavaScript` files : `client.js` , `server.js` ,`myModule.js` . In `client.js` I create a window vari...

30 Aug at 15:19

Inspect DefaultHttpContext body in unit test situation

I'm trying to use the `DefaultHttpContext` object to unit test my exception handling middleware. My test method looks like this: ``` [Fact] public async Task Invoke_ProductionNonSuredException_Retur...

The type or namespace name "WebRequestHandler" could not be found

I am trying to use the Dropbox.API code that is listed here: [https://github.com/dropbox/dropbox-sdk-dotnet/tree/master/dropbox-sdk-dotnet/Examples/SimpleTest](https://github.com/dropbox/dropbox-sdk-...

30 Aug at 11:31

Download files from url to local device in .Net Core

In .Net 4.0 I used WebClient to download files from an url and save them on my local drive. But I am not able to achieve the same in .Net Core. Can anyone help me out on this?

10 Apr at 13:46

Profiler BLOCKED_TIME in IdentityServer4/Newtonsoft.Json

I'm having issues that the /connect/introspect endpoint of my IdentityServer is sometimes really slow (10 seconds for one call). As you can see below, most of the calls (18k) perform quickly (<250ms)....

Convert numpy array type and values from Float64 to Float32

I am trying to convert threshold array(pickle file of isolation forest from scikit learn) of type from Float64 to Float32 ``` for i in range(len(tree.tree_.threshold)): tree.tree_.threshold[i] =...

30 Aug at 08:9

ICustomAuthorizeRequestValidator isn't being called?

I'm trying to use `AddCustomAuthorizeRequestValidator` method to provide custom claims validation. I can't even get a breakpoint to be hit in the `ICustomAuthorizeRequestValidator` implementation. Hav...

10 Nov at 12:28

Recommended approach for handling non-authenticated sessions on ServiceStack

I've an MVC app, with SS integrated for all BLL that has a shopping basket feature. I want anonymous users to be able to add to basket and then continue shopping with basket details intact when they r...

30 Aug at 07:41

pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available

I am using Python 3.6. When I try to install "modules" using `pip3`, I face this issue: ``` pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available ```...

21 Dec at 15:48

What's the most concise way to create a Task that never returns?

For testing purposes, I need to mock a `Task`-returning method on an interface handing back a task that never runs the continuation. Here's the code I have so far: ``` // FooTests.cs [Test] public v...

30 Aug at 07:3

OneSignal: How to Handle notificationOpened in AppDelegate of a Xamarin.Forms app?

I am working on implementing OneSignal push-notification in Xamarin.Forms. I need to pass the string returned by OneSignal `AdditionalData` into the constructor of `App()`. So I used `HandleNotificati...

Pyinstaller is not recognized as internal or external command

I am trying to use `pyinstaller` in cmd but I receive error: ``` C:\Users\username>pyinstaller 'pyinstaller' is not recognized as an internal or external command, operable program or batch file. C...

30 Aug at 04:33

Multiple assertions using Fluent Assertions library

It seems that Fluent Assertions doesn't work within NUnit's `Assert.Multiple` block: ``` Assert.Multiple(() => { 1.Should().Be(2); 3.Should().Be(4); }); ``` When this code is ...

How to create Toast in Flutter

Can I create something similar to [Toasts](https://developer.android.com/guide/topics/ui/notifiers/toasts.html) in Flutter? [](https://i.stack.imgur.com/a2ahK.jpg) Just a tiny notification window that...

26 Dec at 09:44

AddDbContext was called with configuration, but the context type 'MyContext' only declares a parameterless constructor?

In the following console application (.Net core 2.0), the `scaffold-dbcontext` created the following `DbContext` ``` public partial class MyContext : DbContext { public virtual DbSet<Tables> Tabl...

Generating WSDL for a single ServiceStack service

Is there a way to get a WSDL for a single ServiceStack service? For example, if I override the AppHost.Configure method and register a service, like so... ``` public override void Configure(Containe...

29 Aug at 17:8

native/canonical approach to Fire-and-forget in ASP.NET Core world

Doing some coding with websockets related, I found that's it's unclear at the moment, how to properly deal with long running background processes or tasks executed via fire-and-forget semantics (this ...

Default and specific request timeout

Usually it's desirable to have default timeout (e.g. 30s) that will be applied to all requests and can be overridden for particular requests (e.g. 600s). There's no good way to specify default timeo...

5 Mar at 17:12

The version of Microsoft.NET.Sdk used by this project is insufficient to support references to libraries targeting .NET Standard 1.5 or higher

Im am encountering the following build error: > The version of Microsoft.NET.Sdk used by this project is insufficient to support references to libraries targeting .NET Standard 1.5 or higher. Please...

How retrieve http delete method params in ServiceStack

In an Angular 2 client app, I have added a parameter to the http.delete method's RequestOptions: (new RequestOptions({headers: this.headers, body: body})). Does anybody know if it's being stripped off...

29 Aug at 12:1

Display label text in uppercase using xaml in Xamarin.Forms

I have an username label and need to view this as uppercase but this should only relate to the UI. The data (string) should be saved in the db as actual case whatever it is. Could anyone tell me if th...