Is HTTP status code 426 Upgrade Required only meant signal an upgrade to a secure channel is required?

Quoting one of my previous answers: HTTP Upgrade is used to indicate a preference or requirement to switch to a different version of HTTP or to another protocol, if possible: The Upgrade general-header allows the client to specify what additional communication protocols it supports and would like to use if the server finds it appropriate … Read more

How do TCP/IP and HTTP work together?

The network layers use abstraction and encapsulation. The lower layers encapsulate the higher layers. The Application layer can have its own protocols, e.g. HTTP. HTTP communicates with HTTP on the target device, and it is a protocol that transfers the application data (HTML). The Transport layer (layer 4) encapsulates the application datagrams, and it communicates … Read more

How make a http post using form data in flutter?

Use Map instead, because body in http package only has 3 types: String, List<int> or Map<String, String>. Try this: final Uri uri = Uri.parse(‘https://na57.salesforce.com/services/oauth2/token’); final map = <String, dynamic>{}; map[‘grant_type’] = ‘password’; map[‘client_id’] = ‘3MVG9dZJodJWITSviqdj3EnW.LrZ81MbuGBqgIxxxdD6u7Mru2NOEs8bHFoFyNw_nVKPhlF2EzDbNYI0rphQL’; map[‘client_secret’] = ’42E131F37E4E05313646E1ED1D3788D76192EBECA7486D15BDDB8408B9726B42′; map[‘username’] = ‘[email protected]’; map[‘password’] = ‘ABC1234563Af88jesKxPLVirJRW8wXvj3D’; http.Response response = await http.post( uri, body: map, );

Why is it said that HTTP2 is a binary protocol?

Binary is probably a confusing term – everything is ultimately binary at some point in computers! HTTP/2 has a highly structured format where HTTP messages are formatted into packets (called frames) and where each frame is assigned to a stream. HTTP/2 frames have a specific format, including a length which is declared at the beginning … Read more

Why isn’t it possible to use a CNAME alias to Google Storage with HTTPS? [closed]

Assume you have a CNAME record: travel-maps.example.com CNAME c.commondatastorage.googleapis.com. Browser resolves name travel-maps.example.com and gets IP for c.commondatastorage.googleapis.com, then connects to port 443 of this address. Server with this IP couldn’t possibly[1] have proper certificate for travel-maps.example.com (and all other domain names with CNAME records like this). Only example.com domain owner could get a trusted … Read more