Ajax request succeeds but result is empty
I am building a Google Chrome browser extension that uses $.ajax requests to send data from webpages to my server (currently hosted using localhost). The content_script.js file that is being executed in the context of the webpages (more on content scripts) that the extension has access to runs this code:
//note: encode64String is assigned earlier in the script...
$.ajax(
type: "POST",
url: "http://localhost:8888/quartzsite/uploadendpoint.php",
type: "jsonp",
data: img: encode64String,
contentType: "application/x-www-form-urlencoded;charset=UTF-8",
success: function(data)
console.log("The ajax request succeeded!");
console.log("The result is: ");
console.log(data);
,
error: function()
console.log("The request failed");
);
The problem is that the Ajax request is succeeding but the data argument that it returns is empty...
The console looks like this after the code is run:
Currently the contents of the uploadedendpoint.php file are:
<?php
header("Access-Control-Allow-Origin: *");
echo 'This comes from php file'; die();
?>
<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
</head>
<body>
The content of the document......
</body>
</html>
This means there should be at least something being returned in the data variable.
I have further confirmed that the request is succeeding because when I send the request to a broken url (i.e. uploaddddddendpoint.php) the code inside the $.ajax's error parameter is executed.
I have read similar questions like jQuery $.ajax response empty, but only in Chrome but to no avail...
UPDATE:
I have removed the invalid second type: "jsonp" parameter entirely and have added dataType: "text/html". I am now getting a failed ajax request each time the code is run.
UPDATE: Strangely changing dataType : "text/html" to dataType : "html" causes the ajax request to succeed but again with a blank data variable.
UPDATE: When using the dev toolkit to monitor the Network XHR these are the sent/response messages:
With regards to the flag of possible duplication to
Impossible to cross site ajax api calls in a chrome extension? I suggest otherwise! I have investigated that question and the problem does NOT seem to be the same.
javascript jquery html ajax
google-chrome-extension edited May 23 '17 at 12:08
Community♦
11
asked Aug 14 '13 at 22:22
BrannonBrannon
56311025
|
show 13 more comments
I am building a Google Chrome browser extension that uses $.ajax requests to send data from webpages to my server (currently hosted using localhost). The content_script.js file that is being executed in the context of the webpages (more on content scripts) that the extension has access to runs this code:
//note: encode64String is assigned earlier in the script...
$.ajax(
type: "POST",
url: "http://localhost:8888/quartzsite/uploadendpoint.php",
type: "jsonp",
data: img: encode64String,
contentType: "application/x-www-form-urlencoded;charset=UTF-8",
success: function(data)
console.log("The ajax request succeeded!");
console.log("The result is: ");
console.log(data);
,
error: function()
console.log("The request failed");
);
The problem is that the Ajax request is succeeding but the data argument that it returns is empty...
The console looks like this after the code is run:
Currently the contents of the uploadedendpoint.php file are:
<?php
header("Access-Control-Allow-Origin: *");
echo 'This comes from php file'; die();
?>
<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
</head>
<body>
The content of the document......
</body>
</html>
This means there should be at least something being returned in the data variable.
I have further confirmed that the request is succeeding because when I send the request to a broken url (i.e. uploaddddddendpoint.php) the code inside the $.ajax's error parameter is executed.
I have read similar questions like jQuery $.ajax response empty, but only in Chrome but to no avail...
UPDATE:
I have removed the invalid second type: "jsonp" parameter entirely and have added dataType: "text/html". I am now getting a failed ajax request each time the code is run.
UPDATE: Strangely changing dataType : "text/html" to dataType : "html" causes the ajax request to succeed but again with a blank data variable.
UPDATE: When using the dev toolkit to monitor the Network XHR these are the sent/response messages:
With regards to the flag of possible duplication to
Impossible to cross site ajax api calls in a chrome extension? I suggest otherwise! I have investigated that question and the problem does NOT seem to be the same.
javascript jquery html ajax
google-chrome-extension edited May 23 '17 at 12:08
Community♦
11
asked Aug 14 '13 at 22:22
BrannonBrannon
56311025
Try this on your first line of the php file:<?php echo 'This comes from php file'; die(); ?>- Check if you get this in the console.
– Sergio
Aug 14 '13 at 22:24
what does the Network tab show? try removingjsonptype.
– akonsu
Aug 14 '13 at 22:25
@Sergio no change...
– Brannon
Aug 14 '13 at 22:27
1
go to the network pane of your chrome dev tools and see what the script returns
– Prisoner
Aug 14 '13 at 22:31
1
@Brannon Re edit: The screenshot of the devtools suggests that your problem isn't related to JS/jQuery, but caused by something at your server's end. In your PHP snippet, you've set a response header. However, this header is absent in your screenshot. Also,Content-Length: 0indicates that the server's response is really empty.
– Rob W
Aug 16 '13 at 13:49
|
show 13 more comments
I am building a Google Chrome browser extension that uses $.ajax requests to send data from webpages to my server (currently hosted using localhost). The content_script.js file that is being executed in the context of the webpages (more on content scripts) that the extension has access to runs this code:
//note: encode64String is assigned earlier in the script...
$.ajax(
type: "POST",
url: "http://localhost:8888/quartzsite/uploadendpoint.php",
type: "jsonp",
data: img: encode64String,
contentType: "application/x-www-form-urlencoded;charset=UTF-8",
success: function(data)
console.log("The ajax request succeeded!");
console.log("The result is: ");
console.log(data);
,
error: function()
console.log("The request failed");
);
The problem is that the Ajax request is succeeding but the data argument that it returns is empty...
The console looks like this after the code is run:
Currently the contents of the uploadedendpoint.php file are:
<?php
header("Access-Control-Allow-Origin: *");
echo 'This comes from php file'; die();
?>
<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
</head>
<body>
The content of the document......
</body>
</html>
This means there should be at least something being returned in the data variable.
I have further confirmed that the request is succeeding because when I send the request to a broken url (i.e. uploaddddddendpoint.php) the code inside the $.ajax's error parameter is executed.
I have read similar questions like jQuery $.ajax response empty, but only in Chrome but to no avail...
UPDATE:
I have removed the invalid second type: "jsonp" parameter entirely and have added dataType: "text/html". I am now getting a failed ajax request each time the code is run.
UPDATE: Strangely changing dataType : "text/html" to dataType : "html" causes the ajax request to succeed but again with a blank data variable.
UPDATE: When using the dev toolkit to monitor the Network XHR these are the sent/response messages:
With regards to the flag of possible duplication to
Impossible to cross site ajax api calls in a chrome extension? I suggest otherwise! I have investigated that question and the problem does NOT seem to be the same.
javascript jquery html ajax
google-chrome-extension edited May 23 '17 at 12:08
Community♦
11
asked Aug 14 '13 at 22:22
BrannonBrannon
56311025
I am building a Google Chrome browser extension that uses $.ajax requests to send data from webpages to my server (currently hosted using localhost). The content_script.js file that is being executed in the context of the webpages (more on content scripts) that the extension has access to runs this code:
//note: encode64String is assigned earlier in the script...
$.ajax(
type: "POST",
url: "http://localhost:8888/quartzsite/uploadendpoint.php",
type: "jsonp",
data: img: encode64String,
contentType: "application/x-www-form-urlencoded;charset=UTF-8",
success: function(data)
console.log("The ajax request succeeded!");
console.log("The result is: ");
console.log(data);
,
error: function()
console.log("The request failed");
);
The problem is that the Ajax request is succeeding but the data argument that it returns is empty...
The console looks like this after the code is run:
Currently the contents of the uploadedendpoint.php file are:
<?php
header("Access-Control-Allow-Origin: *");
echo 'This comes from php file'; die();
?>
<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
</head>
<body>
The content of the document......
</body>
</html>
This means there should be at least something being returned in the data variable.
I have further confirmed that the request is succeeding because when I send the request to a broken url (i.e. uploaddddddendpoint.php) the code inside the $.ajax's error parameter is executed.
I have read similar questions like jQuery $.ajax response empty, but only in Chrome but to no avail...
UPDATE:
I have removed the invalid second type: "jsonp" parameter entirely and have added dataType: "text/html". I am now getting a failed ajax request each time the code is run.
UPDATE: Strangely changing dataType : "text/html" to dataType : "html" causes the ajax request to succeed but again with a blank data variable.
UPDATE: When using the dev toolkit to monitor the Network XHR these are the sent/response messages:
With regards to the flag of possible duplication to
Impossible to cross site ajax api calls in a chrome extension? I suggest otherwise! I have investigated that question and the problem does NOT seem to be the same.
javascript jquery html ajax
google-chrome-extension javascript jquery html ajax
google-chrome-extension edited May 23 '17 at 12:08
Community♦
11
asked Aug 14 '13 at 22:22
BrannonBrannon
56311025
edited May 23 '17 at 12:08
Community♦
11
asked Aug 14 '13 at 22:22
BrannonBrannon
56311025
edited May 23 '17 at 12:08
Community♦
11
edited May 23 '17 at 12:08
Community♦
11
edited May 23 '17 at 12:08
Community♦
11
11
asked Aug 14 '13 at 22:22
BrannonBrannon
56311025
asked Aug 14 '13 at 22:22
BrannonBrannon
56311025
asked Aug 14 '13 at 22:22
BrannonBrannon
56311025
56311025
Try this on your first line of the php file:<?php echo 'This comes from php file'; die(); ?>- Check if you get this in the console.
– Sergio
Aug 14 '13 at 22:24
what does the Network tab show? try removingjsonptype.
– akonsu
Aug 14 '13 at 22:25
@Sergio no change...
– Brannon
Aug 14 '13 at 22:27
1
go to the network pane of your chrome dev tools and see what the script returns
– Prisoner
Aug 14 '13 at 22:31
1
@Brannon Re edit: The screenshot of the devtools suggests that your problem isn't related to JS/jQuery, but caused by something at your server's end. In your PHP snippet, you've set a response header. However, this header is absent in your screenshot. Also,Content-Length: 0indicates that the server's response is really empty.
– Rob W
Aug 16 '13 at 13:49
|
show 13 more comments
Try this on your first line of the php file:<?php echo 'This comes from php file'; die(); ?>- Check if you get this in the console.
– Sergio
Aug 14 '13 at 22:24
what does the Network tab show? try removingjsonptype.
– akonsu
Aug 14 '13 at 22:25
@Sergio no change...
– Brannon
Aug 14 '13 at 22:27
1
go to the network pane of your chrome dev tools and see what the script returns
– Prisoner
Aug 14 '13 at 22:31
1
@Brannon Re edit: The screenshot of the devtools suggests that your problem isn't related to JS/jQuery, but caused by something at your server's end. In your PHP snippet, you've set a response header. However, this header is absent in your screenshot. Also,Content-Length: 0indicates that the server's response is really empty.
– Rob W
Aug 16 '13 at 13:49
Try this on your first line of the php file:
<?php echo 'This comes from php file'; die(); ?> - Check if you get this in the console.– Sergio
Aug 14 '13 at 22:24
Try this on your first line of the php file:
<?php echo 'This comes from php file'; die(); ?> - Check if you get this in the console.– Sergio
Aug 14 '13 at 22:24
what does the Network tab show? try removing
jsonp type.– akonsu
Aug 14 '13 at 22:25
what does the Network tab show? try removing
jsonp type.– akonsu
Aug 14 '13 at 22:25
@Sergio no change...
– Brannon
Aug 14 '13 at 22:27
@Sergio no change...
– Brannon
Aug 14 '13 at 22:27
1
1
go to the network pane of your chrome dev tools and see what the script returns
– Prisoner
Aug 14 '13 at 22:31
go to the network pane of your chrome dev tools and see what the script returns
– Prisoner
Aug 14 '13 at 22:31
1
1
@Brannon Re edit: The screenshot of the devtools suggests that your problem isn't related to JS/jQuery, but caused by something at your server's end. In your PHP snippet, you've set a response header. However, this header is absent in your screenshot. Also,
Content-Length: 0 indicates that the server's response is really empty.– Rob W
Aug 16 '13 at 13:49
@Brannon Re edit: The screenshot of the devtools suggests that your problem isn't related to JS/jQuery, but caused by something at your server's end. In your PHP snippet, you've set a response header. However, this header is absent in your screenshot. Also,
Content-Length: 0 indicates that the server's response is really empty.– Rob W
Aug 16 '13 at 13:49
|
show 13 more comments
2 Answers
2
active
oldest
votes
Why do you have two type fields in your AJAX request? jsonp and POST.
$.ajax(
type: "POST", // OK
url: "http://localhost:8888/quartzsite/uploadendpoint.php",
type: "jsonp", // ???
// ...
);
UPDATE:
I think you should be using the relative path for the URL. Try changing your request to the following:
$.ajax(
type: "POST",
url: "/quartzsite/uploadendpoint.php",
dataType: "text/html",
data: img: encode64String,
success: function(data)
console.log("The ajax request succeeded!");
console.log("The result is: ");
console.dir(data);
,
error: function()
console.log("The request failed");
);
You can see I replaced the URL with /quartzsite/uploadendpoint.php. This may solve the problem... the absolute URL might signal a cross-domain request which is not what you're after.
Also, as a side note, it's unnecessary to set the contentType, since what you're setting it to is already the default value. If you were sending a JSON or XML, then you'd want to set the contentType.
answered Aug 14 '13 at 22:29
ktm5124ktm5124
7,961165489
Nice catch! I have removed the "jsonp" type and added the correctdataType. The request is now failing altogether (which might actually indicate that it was previously giving a false positive).
– Brannon
Aug 14 '13 at 22:40
1
You shouldn't be using "jsonp" anywhere in your request. That is an advanced method for cross-domain requests and I doubt it's what you need. Do you still have that in there?
– ktm5124
Aug 14 '13 at 22:41
I removedjsonp
– Brannon
Aug 14 '13 at 22:42
I updated the question.
– Brannon
Aug 14 '13 at 22:52
add a comment |
One way to solve the problem:
In chrome was an empty answer.
In FF show a php warnings in the answer
Warning: .... on line ...
After removing the warnings, chrome began to display a response.
answered Nov 15 '18 at 8:32
Федор ПересадовФедор Пересадов
111
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Why do you have two type fields in your AJAX request? jsonp and POST.
$.ajax(
type: "POST", // OK
url: "http://localhost:8888/quartzsite/uploadendpoint.php",
type: "jsonp", // ???
// ...
);
UPDATE:
I think you should be using the relative path for the URL. Try changing your request to the following:
$.ajax(
type: "POST",
url: "/quartzsite/uploadendpoint.php",
dataType: "text/html",
data: img: encode64String,
success: function(data)
console.log("The ajax request succeeded!");
console.log("The result is: ");
console.dir(data);
,
error: function()
console.log("The request failed");
);
You can see I replaced the URL with /quartzsite/uploadendpoint.php. This may solve the problem... the absolute URL might signal a cross-domain request which is not what you're after.
Also, as a side note, it's unnecessary to set the contentType, since what you're setting it to is already the default value. If you were sending a JSON or XML, then you'd want to set the contentType.
answered Aug 14 '13 at 22:29
ktm5124ktm5124
7,961165489
Nice catch! I have removed the "jsonp" type and added the correctdataType. The request is now failing altogether (which might actually indicate that it was previously giving a false positive).
– Brannon
Aug 14 '13 at 22:40
1
You shouldn't be using "jsonp" anywhere in your request. That is an advanced method for cross-domain requests and I doubt it's what you need. Do you still have that in there?
– ktm5124
Aug 14 '13 at 22:41
I removedjsonp
– Brannon
Aug 14 '13 at 22:42
I updated the question.
– Brannon
Aug 14 '13 at 22:52
add a comment |
Why do you have two type fields in your AJAX request? jsonp and POST.
$.ajax(
type: "POST", // OK
url: "http://localhost:8888/quartzsite/uploadendpoint.php",
type: "jsonp", // ???
// ...
);
UPDATE:
I think you should be using the relative path for the URL. Try changing your request to the following:
$.ajax(
type: "POST",
url: "/quartzsite/uploadendpoint.php",
dataType: "text/html",
data: img: encode64String,
success: function(data)
console.log("The ajax request succeeded!");
console.log("The result is: ");
console.dir(data);
,
error: function()
console.log("The request failed");
);
You can see I replaced the URL with /quartzsite/uploadendpoint.php. This may solve the problem... the absolute URL might signal a cross-domain request which is not what you're after.
Also, as a side note, it's unnecessary to set the contentType, since what you're setting it to is already the default value. If you were sending a JSON or XML, then you'd want to set the contentType.
answered Aug 14 '13 at 22:29
ktm5124ktm5124
7,961165489
Nice catch! I have removed the "jsonp" type and added the correctdataType. The request is now failing altogether (which might actually indicate that it was previously giving a false positive).
– Brannon
Aug 14 '13 at 22:40
1
You shouldn't be using "jsonp" anywhere in your request. That is an advanced method for cross-domain requests and I doubt it's what you need. Do you still have that in there?
– ktm5124
Aug 14 '13 at 22:41
I removedjsonp
– Brannon
Aug 14 '13 at 22:42
I updated the question.
– Brannon
Aug 14 '13 at 22:52
add a comment |
Why do you have two type fields in your AJAX request? jsonp and POST.
$.ajax(
type: "POST", // OK
url: "http://localhost:8888/quartzsite/uploadendpoint.php",
type: "jsonp", // ???
// ...
);
UPDATE:
I think you should be using the relative path for the URL. Try changing your request to the following:
$.ajax(
type: "POST",
url: "/quartzsite/uploadendpoint.php",
dataType: "text/html",
data: img: encode64String,
success: function(data)
console.log("The ajax request succeeded!");
console.log("The result is: ");
console.dir(data);
,
error: function()
console.log("The request failed");
);
You can see I replaced the URL with /quartzsite/uploadendpoint.php. This may solve the problem... the absolute URL might signal a cross-domain request which is not what you're after.
Also, as a side note, it's unnecessary to set the contentType, since what you're setting it to is already the default value. If you were sending a JSON or XML, then you'd want to set the contentType.
answered Aug 14 '13 at 22:29
ktm5124ktm5124
7,961165489
Why do you have two type fields in your AJAX request? jsonp and POST.
$.ajax(
type: "POST", // OK
url: "http://localhost:8888/quartzsite/uploadendpoint.php",
type: "jsonp", // ???
// ...
);
UPDATE:
I think you should be using the relative path for the URL. Try changing your request to the following:
$.ajax(
type: "POST",
url: "/quartzsite/uploadendpoint.php",
dataType: "text/html",
data: img: encode64String,
success: function(data)
console.log("The ajax request succeeded!");
console.log("The result is: ");
console.dir(data);
,
error: function()
console.log("The request failed");
);
You can see I replaced the URL with /quartzsite/uploadendpoint.php. This may solve the problem... the absolute URL might signal a cross-domain request which is not what you're after.
Also, as a side note, it's unnecessary to set the contentType, since what you're setting it to is already the default value. If you were sending a JSON or XML, then you'd want to set the contentType.
answered Aug 14 '13 at 22:29
ktm5124ktm5124
7,961165489
edited Aug 15 '13 at 2:28
answered Aug 14 '13 at 22:29
ktm5124ktm5124
7,961165489
answered Aug 14 '13 at 22:29
ktm5124ktm5124
7,961165489
answered Aug 14 '13 at 22:29
ktm5124ktm5124
7,961165489
7,961165489
Nice catch! I have removed the "jsonp" type and added the correctdataType. The request is now failing altogether (which might actually indicate that it was previously giving a false positive).
– Brannon
Aug 14 '13 at 22:40
1
You shouldn't be using "jsonp" anywhere in your request. That is an advanced method for cross-domain requests and I doubt it's what you need. Do you still have that in there?
– ktm5124
Aug 14 '13 at 22:41
I removedjsonp
– Brannon
Aug 14 '13 at 22:42
I updated the question.
– Brannon
Aug 14 '13 at 22:52
add a comment |
Nice catch! I have removed the "jsonp" type and added the correctdataType. The request is now failing altogether (which might actually indicate that it was previously giving a false positive).
– Brannon
Aug 14 '13 at 22:40
1
You shouldn't be using "jsonp" anywhere in your request. That is an advanced method for cross-domain requests and I doubt it's what you need. Do you still have that in there?
– ktm5124
Aug 14 '13 at 22:41
I removedjsonp
– Brannon
Aug 14 '13 at 22:42
I updated the question.
– Brannon
Aug 14 '13 at 22:52
Nice catch! I have removed the "jsonp" type and added the correct
dataType. The request is now failing altogether (which might actually indicate that it was previously giving a false positive).– Brannon
Aug 14 '13 at 22:40
Nice catch! I have removed the "jsonp" type and added the correct
dataType. The request is now failing altogether (which might actually indicate that it was previously giving a false positive).– Brannon
Aug 14 '13 at 22:40
1
1
You shouldn't be using "jsonp" anywhere in your request. That is an advanced method for cross-domain requests and I doubt it's what you need. Do you still have that in there?
– ktm5124
Aug 14 '13 at 22:41
You shouldn't be using "jsonp" anywhere in your request. That is an advanced method for cross-domain requests and I doubt it's what you need. Do you still have that in there?
– ktm5124
Aug 14 '13 at 22:41
I removed
jsonp– Brannon
Aug 14 '13 at 22:42
I removed
jsonp– Brannon
Aug 14 '13 at 22:42
I updated the question.
– Brannon
Aug 14 '13 at 22:52
I updated the question.
– Brannon
Aug 14 '13 at 22:52
add a comment |
One way to solve the problem:
In chrome was an empty answer.
In FF show a php warnings in the answer
Warning: .... on line ...
After removing the warnings, chrome began to display a response.
answered Nov 15 '18 at 8:32
Федор ПересадовФедор Пересадов
111
add a comment |
One way to solve the problem:
In chrome was an empty answer.
In FF show a php warnings in the answer
Warning: .... on line ...
After removing the warnings, chrome began to display a response.
answered Nov 15 '18 at 8:32
Федор ПересадовФедор Пересадов
111
add a comment |
One way to solve the problem:
In chrome was an empty answer.
In FF show a php warnings in the answer
Warning: .... on line ...
After removing the warnings, chrome began to display a response.
answered Nov 15 '18 at 8:32
Федор ПересадовФедор Пересадов
111
One way to solve the problem:
In chrome was an empty answer.
In FF show a php warnings in the answer
Warning: .... on line ...
After removing the warnings, chrome began to display a response.
answered Nov 15 '18 at 8:32
Федор ПересадовФедор Пересадов
111
answered Nov 15 '18 at 8:32
Федор ПересадовФедор Пересадов
111
answered Nov 15 '18 at 8:32
Федор ПересадовФедор Пересадов
111
answered Nov 15 '18 at 8:32
Федор ПересадовФедор Пересадов
111
111
add a comment |
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Try this on your first line of the php file:
<?php echo 'This comes from php file'; die(); ?>- Check if you get this in the console.– Sergio
Aug 14 '13 at 22:24
what does the Network tab show? try removing
jsonptype.– akonsu
Aug 14 '13 at 22:25
@Sergio no change...
– Brannon
Aug 14 '13 at 22:27
1
go to the network pane of your chrome dev tools and see what the script returns
– Prisoner
Aug 14 '13 at 22:31
1
@Brannon Re edit: The screenshot of the devtools suggests that your problem isn't related to JS/jQuery, but caused by something at your server's end. In your PHP snippet, you've set a response header. However, this header is absent in your screenshot. Also,
Content-Length: 0indicates that the server's response is really empty.– Rob W
Aug 16 '13 at 13:49