http

问题 As part of the authentication process in my app, users can sign in using their Facebook account - I'm using the Facebook iOS SDK to handle this process. Once authentication is complete, I make a request to Facebook graph api to fetch the users profile data (This is the first async req). The second async request is also to Facebook graph api to request the users friends list who have the app installed. The final and third request in this function makes a async POST request to an API I've

问题 Should non-2XX status code responses still include CORS specific headers such as Access-Control-Allow-Origin , Access-Control-Allow-Methods , and Access-Control-Max-Age ? Does that even make any sense for clients? For example: ➜ api git:(master) ✗ curl -i http://127.0.0.1:9000/dfas HTTP/1.1 404 Not Found Connection: close Server: Node.js v6.3.1 Cache-Control: no-cache, no-store Access-Control-Max-Age: 300 Access-Control-Allow-Origin: * Content-Type: application/json Content-Length: 60 Date:

问题 Should non-2XX status code responses still include CORS specific headers such as Access-Control-Allow-Origin , Access-Control-Allow-Methods , and Access-Control-Max-Age ? Does that even make any sense for clients? For example: ➜ api git:(master) ✗ curl -i http://127.0.0.1:9000/dfas HTTP/1.1 404 Not Found Connection: close Server: Node.js v6.3.1 Cache-Control: no-cache, no-store Access-Control-Max-Age: 300 Access-Control-Allow-Origin: * Content-Type: application/json Content-Length: 60 Date:

问题 I've read about single cache-control header value. To test what I learned, I opened facebook and inspect. This is the Cache-Control response header I get: cache-control:private, no-cache, no-store, must-revalidate I am confused what this header actually tells, because it contains 4 values at once. So what happens with the resource send through the network, if it contains such header? EDIT: no-store says, "do not store at all, not in private not public caches", and no-cache says "yeees you can

问题 I've read about single cache-control header value. To test what I learned, I opened facebook and inspect. This is the Cache-Control response header I get: cache-control:private, no-cache, no-store, must-revalidate I am confused what this header actually tells, because it contains 4 values at once. So what happens with the resource send through the network, if it contains such header? EDIT: no-store says, "do not store at all, not in private not public caches", and no-cache says "yeees you can

问题 I've read about single cache-control header value. To test what I learned, I opened facebook and inspect. This is the Cache-Control response header I get: cache-control:private, no-cache, no-store, must-revalidate I am confused what this header actually tells, because it contains 4 values at once. So what happens with the resource send through the network, if it contains such header? EDIT: no-store says, "do not store at all, not in private not public caches", and no-cache says "yeees you can

问题 Since MJPEG over http consists basically on the transmission of a series of JPEG images seperated by a defined seperator, how does MPlayer recognize that it is an MJPEG stream? Thank you 回答1: Have a look at: MplayerMjpegStreamViewing < Motion < Foswiki e.g. mplayer -fps 4 -demuxer lavf http://rpi-6:8080/?action=stream does the job for me. Suitable for a streaming server running on a Raspberry like this: /usr/local/bin/mjpg_streamer -o output_http.so -w ./www -i input_raspicam.so -x 1920 -y

问题 Is it possible to change the url of a HTTP-request without redirection? For example instead of: request 1 GET /user/abc123/ HTTP/1.1 HTTP/1.1 301 Moved Permanently Location: /files/abc123 request 2 GET /files/abc123 HTTP/1.1 HTTP/1.1 200 OK . . [filecontent] I could could respond the file directly, but letting the client know that he got redirected: single request GET /user/abc123/ HTTP/1.1 HTTP/1.1 200 OK Location: /files/abc123 . . [filecontent] 回答1: As far as I know, it's not possible to

问题 The examples given on https://docs.unity3d.com/Manual/UnityWebRequest.html works on Windows Desktop, Windows Mobile, Android and even in the iOS editor as expected. But when I publish the app to the Apple App Store it fails to connect to the internet. Unlike the other platforms, there is no noticeable delay and it seems to fail immediately when a request is attempted. The error is: Unknown Error Is there any special way that I need to configure the XCode project to allow an iOS app to connect

问题 The examples given on https://docs.unity3d.com/Manual/UnityWebRequest.html works on Windows Desktop, Windows Mobile, Android and even in the iOS editor as expected. But when I publish the app to the Apple App Store it fails to connect to the internet. Unlike the other platforms, there is no noticeable delay and it seems to fail immediately when a request is attempted. The error is: Unknown Error Is there any special way that I need to configure the XCode project to allow an iOS app to connect