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Check if image exists on server using JavaScript?
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You could use something like:
function imageExists(image_url){
var http = new XMLHttpRequest();
http.open('HEAD', image_url, false);
http.send();
return http.status != 404;
}
Obviously you could use jQuery/similar to perform your HTTP request.
$.get(image_url)
.done(fun...
Making a request to a RESTful API using python
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Using requests:
import requests
url = 'http://ES_search_demo.com/document/record/_search?pretty=true'
data = '''{
"query": {
"bool": {
"must": [
{
"text": {
"record.document": "SOME_JOURNAL"
}
},
...
HTTP Error 403.14 - Forbidden - The Web server is configured to not list the contents of this direct
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i am getting HTTP Error 500.22 - Internal Server Error.
– Bryan Labuschagne
Sep 26 '17 at 8:44
add a comment
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How to send password securely over HTTP?
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Using HTTP with SSL will make your life much easier and you can rest at ease very smart people (smarter than me at least!) have scrutinized this method of confidential communication for years.
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How are everyday machines programmed?
... of money, but they have C compilers, drivers to work with hardware, etc.
http://www.qnx.com/
http://www.segger.com/cms/embos.html
http://www.microsoft.com/windowsembedded/en-us/campaigns/compact7/default.aspx?WT.srch=1&WT.mc_ID=SEARCH
RTLinux
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Do sessions really violate RESTfulness?
...s such, to the client, a session cookie is exactly the same as any
other HTTP header based authentication mechanism, except that it uses
the Cookie header instead of the Authorization or some other
proprietary header.
By session cookies you store the client state on the server and so your re...
json_encode() escaping forward slashes
...y need to use the JSON_UNESCAPED_SLASHES flag.
!important read before: https://stackoverflow.com/a/10210367/367456 (know what you're dealing with - know your enemy)
json_encode($str, JSON_UNESCAPED_SLASHES);
If you don't have PHP 5.4 at hand, pick one of the many existing functions and modif...
How do I request a file but not save it with Wget? [closed]
I'm using Wget to make http requests to a fresh web server. I am doing this to warm the MySQL cache. I do not want to save the files after they are served.
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How to redirect to previous page in Ruby On Rails?
...s like a charm for me. It's just a short cut for
redirect_to(request.env['HTTP_REFERER'])
http://apidock.com/rails/ActionController/Base/redirect_to (pre Rails 3) or http://apidock.com/rails/ActionController/Redirecting/redirect_to (Rails 3)
Please note that redirect_to(:back) is being deprecated...
Difference between app.use and app.get in express.js
...nd to any path that starts with /, which are all of them and regardless of HTTP verb used:
GET /
PUT /foo
POST /foo/bar
etc.
app.get(), on the other hand, is part of Express' application routing and is intended for matching and handling a specific route when requested with the GET HTTP verb:
G...