I want to send base64 string through ajax
I encoded it through JavaScript function escape
data = escape"data:image/png;base64,iVBOR w0K+GgoAAAAN+SUhEUgAAAU oAA+ADmCAYAAAC+zgMwkAAAgAElEQ+VR4Xu1de3BVx3n");
It worksfine and encode it as
data%3Aimage/png%3Bbase64%2CiVBOR%20w0K+GgoAAAAN+SUhEUgAAAU%20oAA+ADmCAYAAAC+zgMwkAAAgAElEQ+VR4Xu1de3BVx3n
But when I send it through ajax
$.ajax({
url: 'http://fiveriverstech.com',
type: 'POST',
data: "data="+data,
success: function(response){
console.log(response)
}
});
It replaces the + sign whit white spaces
as data:data:image/png;base64,iVBOR w0K GgoAAAAN SUhEUgAAAU oAA ADmCAYAAAC zgMwkAAAgAElEQ VR4Xu1de3BVx3n
How I can prevent to do this
JS Fiddle
You probably want to use encodeURIComponent() instead of escape(). escape() is not intended to be used for URLs and form data.
Even easier would be to use
data: { data: 'data:image/png;base64,...' }
in your $.ajax() options, without bothering to encode it; jQuery will take care of everything.
Related
I use this code to store and retrieve ajax data via http://openkeyval.org/
$.ajax({ /* send data */
url: "http://api.openkeyval.org/store/",
data: "test-key-data=" + JSON.stringify([123,456]),
dataType: "jsonp",
success: function(data){
console.log(data);
}
});
$.ajax({ /* retrieve data */
url: "http://api.openkeyval.org/test-key-data",
dataType: "jsonp",
success: function(data){
console.log(data);
}
});
everything work fine in Chrome javascript console but in userscript I get error like this
Uncaught ReferenceError: jQuery110208458673823624849_1375932537303 is
not defined
I try to use GM_xmlhttpRequest to retrieve data like this
GM_xmlhttpRequest({
method: "GET",
url: "http://api.openkeyval.org/test-key-data",
onload: function(response) {
console.log(response.responseText);
}
});
but it seem like openkeyval doesn't accept data via POST/GET method and log result was like when you access it directly from url of browser like this
{"error":"not_found","documentation_url":"http://openkeyval.org/"}
I include jQuery and it work fine with this code
// #require http://code.jquery.com/jquery-latest.min.js
I try to use Greasemonkey/jQuery XHR bridge with out change other code by like this
// #require http://courses.ischool.berkeley.edu/i290-4/f09/resources/gm_jq_xhr.js
and try use openkeyval official javascript library with code like this
// #require http://cdn.openkeyval.org/statics/openkeyval.packed.js
and retrieve data with code like this
var ourCallback = function(value, key) {
console('The value of ' + key ' + is ' + value);
};
window.remoteStorage.getItem('test-key-data', ourCallback);
still got error ERROR: Unexpected string
Please help, I mess with it more than 10 hours. Thank you so much.
It look like $.ajax always trigger error event function
but GM_xmlhttpRequest can retrieve mistype data, so I try looking for dataType: "jsonp" in GM_xmlhttpRequest and I got that jsonp header content-type is "application/javascript" OR "application/json" and the first one work well.
my new code for retrieve data look like this
GM_xmlhttpRequest({
method: "GET",
url: "http://api.openkeyval.org/test-key-data?nocache=" + new Date(),
headers: {
"Content-Type": "application/javascript"
},
onload: function(response) {
console.log(response.responseText);
}
});
and retrieve data using $.ajax even it always trigger error event function but it still send data.
I try both content-type on GM_xmlhttpRequest and still not work.
my code to store data look like this
$.ajax({ /* send data */
url: "http://api.openkeyval.org/store/",
data: "test-key-data=" + JSON.stringify(myVarObject),
dataType: "jsonp"
});
Add this into $.ajax({...})
crossDomain: true;
It is because by default cross domain ability is disabled. See http://api.jquery.com/jQuery.ajax/
EDIT:
Sometimes there will be a issue with different charset between local script and remote script. Try using:
scriptCharset: "utf-8";
Also look at JQuery AJAX is not sending UTF-8 to my server, only in IE
Elaborating my comment
The reference is to the callback function generated by jquery.
It Sounds to me the way you invoke your userscript unloads the jquery functions before the callback is executed.
Perhaps you use a link and forgot the preventDefault?
If you ajax and have
$("#linkid").on("click"
or
$("#formid").on("submit"
it is MANDATORY to continue like this:
,function(e) {
e.preventDefault();
Otherwise the link is followed or the form is submitted which may not have any visible effect, but the asynchronous scripts have been (partially) unloaded unless the form and link has a target other than the current window
I am trying to attach data to my requestbody while sendign using jQuery ajax.
If I tried to do it using the extension RESTCLient is either firefox or chrome it works fine, which means that my method on the serverside is working fine.
That is why I am pretty sure that it the ajax call I am making
$.ajax({
url: 'lingosnacks/delete/'+ id,
type: 'POST',
data: $('#email').val() + $('#password').val()
dataType: "json",
success: function(data) {
console.log("FILL| Sucess| ");
console.log("FILL| Sucess| Data| " + data);
fill(data);
}
});
The data line is wrong, it should be very similar to a JSON string, like this:
data: {email: $('#email').val(), password: $('#password').val()},
You need to have the data you are sending in this format:
email=blah%40blah.com&password=pass123
You can do that with jQuery using $('form').serialize()
Also, you are missing a , after your data string in the Ajax call.
Actually data param in jQuery Ajax method is for sending url params.
You can send the same by appending then into the url but to make the code more readable e and organized i would prefer to use data variable.
So your data content should look like :
data : "email="+$('#email').val()+"&password="+$('#password').val();
I am not pretty sure if sending params like a json object will work or not because i never used it.
var p = JSON.stringify(parameter);
console.log(p);
$.ajax({
type: 'POST',
url: 'http://abc.com/ajax.php',
data: p,
success: function(status) {
console.log(status);
}
});
console.log(p) shows {"o_fname":"hh","o_lname":"jkhk","o_email":"uifh#bjvh.com","o_phone":"","b_name":"bmnbmbm,b","b_address":"","b_city":"","b_postal":"","b_phone":""}
but in my http://abc.com/ajax.php page print_r($_POST) is giving me an empty array Array()
var p = JSON.stringify(parameter);
That is your problem.
When you pass string data to .ajax, it sends it “as-is” – but PHP only popuplates $_POST if it receives data encoded as application/x-www-form-urlencoded.
So don’t make your data into a string, but pass your parameter object directly as value for data – then jQuery will take care of sending it the right way, so that PHP understands what it is supposed to do with it.
I think park of the problem may be that in data: you're passing the parameter details, but to the function on the other side of the jQuery you're passing a parameter name and nothing else.
Try:
$.ajax({
type: 'POST',
url: 'http://abc.com/ajax.php',
data: {parametername:p},
success: function(status) {
console.log(status);
}
});
With parametername replaced with the parameter name ajax.php is expecting.
I make an ajax call to a function which returns html.
$.ajax({
url: url,
type:'POST',
dataType: 'html',
success: function(output){
$("#prikaz_oglasov").html(output);
}
,error: function (xhr, status) {
alert('error: ' + status);
}
});
I insert the html in a div with a specific id. Now when a onclick event occurs I would like to receive two chunks of html code and insert it in two different divs. I could ofcourse do two ajax calls, but it doesnt seem very efficient. Is there any way to do this?
I think your options are to either make the server return a JSON response looking like
{
chunk1: 'some html',
chunk2: 'some html'
}
and then have something like
...
dataType: 'json',
success: function(output){
$("#prikaz_oglasov").html(output.chunk1);
$("#prikaz_oglasov2").html(output.chunk2);
}
...
or to try and split the incoming html into two chunks using a regular expression.
I'd rather send 2 separate requests, especially if this HTML is static. Cleaner code is better.
Ι need to use a combination of the following 2 scripts but despite all the combinations I've done so far, I fail to get it to work 100%.
I use a colorbox to display products detail pages in which there is a form with various fields for adding the items to the cart. Upon submitting the form, I want to show an alert and then close the colorbox so that the underlying page (that opened the colorbox in the forst place) stays as is.
With this script
$("#productadd").submit(function(){ // WORKS FINE EXCEPT THE ENCODING
$.post(
$(this).attr('action'),
$(this).serialize(),
function(data){
alert('Product was added to your order');
$().colorbox.close();
});
everything works fine except for the encoding which in my case is iso-8859-7 (greek).
If I use this script then encoding is ok but the post is being made with the default behaviour, redirection to the url defined in the form's action.
$("#productadd").submit(function(){ //ENCODING OK, COLORBOX.CLOSE() AND ALERT FAIL
$.ajax({
data: data,
type: "POST",
url: $(this).attr('action'),
dataType: 'json',
beforeSend : function(xhr) {
xhr.setRequestHeader('Accept', "text/html; charset=iso-8859-7");
},
success: function(json) {
alert('Product added to cart!'),
$().colorbox.close(),
itemAddCallback(json);
},
error: function (xhr, textStatus, errorThrown) {
$("#error").html(xhr.responseText);
}
});
If there's a jQuery equivalent for xhr.setRequestHeader('Accept', "text/html; charset=iso-8859-7") I'd be more than happy to use it. Also, what do I declare as data: so I dont get a 'data is not defined' error? (despite the error, date submits fine).
UPDATE: After various suggestions from those who answered so far, this is what my code looks like:
$("#productadd").submit(function(){
$.ajax({
data: $(this).serialize(),
type: "POST",
url: $(this).attr('action'),
dataType: 'text',
mimeType: "text/html; iso-8859-7",
success: function() {
alert('Item added to your order'),
$().colorbox.close();
},
error: function (xhr, textStatus, errorThrown) {
$("#error").html(xhr.responseText);
}
});
My only problem is that although it submits and displays the alert etc, the submitted data is encoded in utf-8 instead of iso-8859-7, any ideas?
Please check the documentation:
http://api.jquery.com/jQuery.ajax/
Find mimeType property.
mimeType(added 1.5.1)String
A mime type to override the XHR mime type.
Therefore you need to add following:
$.ajax({
data: data,
type: "POST",
mimeType: "text/html; charset=iso-8859-7"...
In the shorthand POST request you send $(this).serialize() as data, so I suppose you want to send the same form data in the other request.
To debug the requests, use your browsers net panel and find out if the requests actually fire and what the responses are (F12 then Net > XHR).
Hope this helps!