Safari - WebInspector Network Tab - An error occurred trying to load the resource

I am seeing the error in the image below in Safari's Developer Tools (Network Tab) for the XHR/Fetch. The response body is not visible. It always throws the red text 'An error occurred trying to load the resource'. My initial thought was that the devtool wouldn't support fetch as opposed to XHR. But Safari 12 supports it.

example

OS: MacOS High Sierra
Browser: Safari 12 & Technology Preview 66

Does this have something to do with the response headers? XSS or something else?
PS: the same response body is visible in chrome dev tool.

edited Nov 27 '18 at 16:00

W.Ambrozic

901212

asked Sep 27 '18 at 6:56

Ramesh

3452412

Hello, could you please provide more information what kind of server you're running as well as some general code to help "us" provide with you with a more speicific answer. As you must have noticed this is probably not directly related to Safari. Have you tried this with other navigators?

– kemicofa
Nov 23 '18 at 19:18

What does it show when you click on "Headers" (next to "Preview")?

– Old Pro
Nov 23 '18 at 21:56

@kemicofa the backend system java within adobe infrastructure. yes, the same http call via chrome displays the response body inn dev tool.

– Ramesh
Nov 24 '18 at 8:25

@OldPro :status: 200 Content-Type: application/json; charset=UTF-8 Pragma: no-cache Set-Cookie: *** Content-Encoding: gzip X-XSS-Protection: 1; mode=block Expires: Sat, 24 Nov 2018 09:32:23 GMT Cache-Control: max-age=0, no-cache, no-store Date: Sat, 24 Nov 2018 09:32:23 GMT Content-Length: 295 X-Content-Type-Options: nosniff X-Frame-Options: sameorigin Vary: Accept-Encoding retry-after: 5400 Server: Apache

– Ramesh
Nov 24 '18 at 12:13

@Ramesh is there a specific reason why the Content-Type is application/json ? It looks like you're getting an HTML page as a response no?

– kemicofa
Nov 24 '18 at 18:02

|
show 4 more comments

example

OS: MacOS High Sierra
Browser: Safari 12 & Technology Preview 66

Does this have something to do with the response headers? XSS or something else?
PS: the same response body is visible in chrome dev tool.

edited Nov 27 '18 at 16:00

W.Ambrozic

901212

asked Sep 27 '18 at 6:56

Ramesh

3452412

Hello, could you please provide more information what kind of server you're running as well as some general code to help "us" provide with you with a more speicific answer. As you must have noticed this is probably not directly related to Safari. Have you tried this with other navigators?

– kemicofa
Nov 23 '18 at 19:18

What does it show when you click on "Headers" (next to "Preview")?

– Old Pro
Nov 23 '18 at 21:56

@kemicofa the backend system java within adobe infrastructure. yes, the same http call via chrome displays the response body inn dev tool.

– Ramesh
Nov 24 '18 at 8:25

@OldPro :status: 200 Content-Type: application/json; charset=UTF-8 Pragma: no-cache Set-Cookie: *** Content-Encoding: gzip X-XSS-Protection: 1; mode=block Expires: Sat, 24 Nov 2018 09:32:23 GMT Cache-Control: max-age=0, no-cache, no-store Date: Sat, 24 Nov 2018 09:32:23 GMT Content-Length: 295 X-Content-Type-Options: nosniff X-Frame-Options: sameorigin Vary: Accept-Encoding retry-after: 5400 Server: Apache

– Ramesh
Nov 24 '18 at 12:13

@Ramesh is there a specific reason why the Content-Type is application/json ? It looks like you're getting an HTML page as a response no?

– kemicofa
Nov 24 '18 at 18:02

|
show 4 more comments

example

OS: MacOS High Sierra
Browser: Safari 12 & Technology Preview 66

Does this have something to do with the response headers? XSS or something else?
PS: the same response body is visible in chrome dev tool.

edited Nov 27 '18 at 16:00

W.Ambrozic

901212

asked Sep 27 '18 at 6:56

Ramesh

3452412

example

OS: MacOS High Sierra
Browser: Safari 12 & Technology Preview 66

Does this have something to do with the response headers? XSS or something else?
PS: the same response body is visible in chrome dev tool.

javascript safari devtools safari-web-inspector

edited Nov 27 '18 at 16:00

W.Ambrozic

901212

asked Sep 27 '18 at 6:56

Ramesh

3452412

edited Nov 27 '18 at 16:00

W.Ambrozic

901212

asked Sep 27 '18 at 6:56

Ramesh

3452412

edited Nov 27 '18 at 16:00

W.Ambrozic

901212

edited Nov 27 '18 at 16:00

W.Ambrozic

901212

edited Nov 27 '18 at 16:00

W.Ambrozic

901212

asked Sep 27 '18 at 6:56

Ramesh

3452412

asked Sep 27 '18 at 6:56

Ramesh

3452412

asked Sep 27 '18 at 6:56

Ramesh

3452412

Hello, could you please provide more information what kind of server you're running as well as some general code to help "us" provide with you with a more speicific answer. As you must have noticed this is probably not directly related to Safari. Have you tried this with other navigators?

– kemicofa
Nov 23 '18 at 19:18

What does it show when you click on "Headers" (next to "Preview")?

– Old Pro
Nov 23 '18 at 21:56

@kemicofa the backend system java within adobe infrastructure. yes, the same http call via chrome displays the response body inn dev tool.

– Ramesh
Nov 24 '18 at 8:25

@OldPro :status: 200 Content-Type: application/json; charset=UTF-8 Pragma: no-cache Set-Cookie: *** Content-Encoding: gzip X-XSS-Protection: 1; mode=block Expires: Sat, 24 Nov 2018 09:32:23 GMT Cache-Control: max-age=0, no-cache, no-store Date: Sat, 24 Nov 2018 09:32:23 GMT Content-Length: 295 X-Content-Type-Options: nosniff X-Frame-Options: sameorigin Vary: Accept-Encoding retry-after: 5400 Server: Apache

– Ramesh
Nov 24 '18 at 12:13

@Ramesh is there a specific reason why the Content-Type is application/json ? It looks like you're getting an HTML page as a response no?

– kemicofa
Nov 24 '18 at 18:02

|
show 4 more comments

Hello, could you please provide more information what kind of server you're running as well as some general code to help "us" provide with you with a more speicific answer. As you must have noticed this is probably not directly related to Safari. Have you tried this with other navigators?

– kemicofa
Nov 23 '18 at 19:18

What does it show when you click on "Headers" (next to "Preview")?

– Old Pro
Nov 23 '18 at 21:56

@kemicofa the backend system java within adobe infrastructure. yes, the same http call via chrome displays the response body inn dev tool.

– Ramesh
Nov 24 '18 at 8:25

@OldPro :status: 200 Content-Type: application/json; charset=UTF-8 Pragma: no-cache Set-Cookie: *** Content-Encoding: gzip X-XSS-Protection: 1; mode=block Expires: Sat, 24 Nov 2018 09:32:23 GMT Cache-Control: max-age=0, no-cache, no-store Date: Sat, 24 Nov 2018 09:32:23 GMT Content-Length: 295 X-Content-Type-Options: nosniff X-Frame-Options: sameorigin Vary: Accept-Encoding retry-after: 5400 Server: Apache

– Ramesh
Nov 24 '18 at 12:13

@Ramesh is there a specific reason why the Content-Type is application/json ? It looks like you're getting an HTML page as a response no?

– kemicofa
Nov 24 '18 at 18:02

Hello, could you please provide more information what kind of server you're running as well as some general code to help "us" provide with you with a more speicific answer. As you must have noticed this is probably not directly related to Safari. Have you tried this with other navigators?

– kemicofa
Nov 23 '18 at 19:18

What does it show when you click on "Headers" (next to "Preview")?

– Old Pro
Nov 23 '18 at 21:56

@kemicofa the backend system java within adobe infrastructure. yes, the same http call via chrome displays the response body inn dev tool.

– Ramesh
Nov 24 '18 at 8:25

@OldPro :status: 200 Content-Type: application/json; charset=UTF-8 Pragma: no-cache Set-Cookie: *** Content-Encoding: gzip X-XSS-Protection: 1; mode=block Expires: Sat, 24 Nov 2018 09:32:23 GMT Cache-Control: max-age=0, no-cache, no-store Date: Sat, 24 Nov 2018 09:32:23 GMT Content-Length: 295 X-Content-Type-Options: nosniff X-Frame-Options: sameorigin Vary: Accept-Encoding retry-after: 5400 Server: Apache

– Ramesh
Nov 24 '18 at 12:13

@Ramesh is there a specific reason why the Content-Type is application/json ? It looks like you're getting an HTML page as a response no?

– kemicofa
Nov 24 '18 at 18:02

|
show 4 more comments

3 Answers
3

active

oldest

votes

+100

On the right of the menu bar with preview there is response with an arrow next to it click on that and switch it to JSON that should do the trick.

answered Nov 28 '18 at 19:24

Yehuda Schwartz

1,21111125

2

My JSON tab show exact error.

– huocp
Nov 29 '18 at 5:15

add a comment |

The browser's error message describes the requirements for this request to complete successfully.

The server must grant access to the requested resource to your remote domain by sending a Access-Control-Allow-Origin response header.

In Safari 12, select the row in the network tab. The response will be displayed in the main area. Above it will be a few tabs. Select the Headers tab and take a look in the request part of the displayed data for some request info. For details on the request data, take a look under "Request Data". If applicable, there will be a small arrow there that you can press to see the full content of the request.

answered Nov 26 '18 at 19:50

UnP

7111

My response did have Access-Control-Allow-Origin: *. It is only not able to show up in dev tool, but the web page works perfectly.

– huocp
Nov 29 '18 at 5:15

add a comment |

The world is not ready for `fetch()`.

To solve this, I easily converted from fetch() to axios.

body became data

json decoded automatically

credentials became withCredentials

I also added this function to determine if the response was ok:

function ok(resp) {

  return resp && resp.status && resp.status >= 200 && resp.status < 400

}

That was all I needed to adjust in my case.

edited Dec 18 '18 at 5:02

answered Dec 18 '18 at 4:50

jchook

2,47812126

thanks, i have validated same on safari. fetch actually works in 12+. I tried in Safari Technology Preview as well. please check below pen in safari. you will see the network response. codepen.io/zellwk/full/QvLRbE. I am suspecting the .html response, though type is json.

– Ramesh
Dec 18 '18 at 15:20

Yes the actual network request works, but debugging becomes a pain.

– jchook
Dec 24 '18 at 3:03

add a comment |

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3 Answers
3

active

oldest

votes

3 Answers
3

active

oldest

votes

+100

On the right of the menu bar with preview there is response with an arrow next to it click on that and switch it to JSON that should do the trick.

answered Nov 28 '18 at 19:24

Yehuda Schwartz

1,21111125

2

My JSON tab show exact error.

– huocp
Nov 29 '18 at 5:15

add a comment |

+100

On the right of the menu bar with preview there is response with an arrow next to it click on that and switch it to JSON that should do the trick.

answered Nov 28 '18 at 19:24

Yehuda Schwartz

1,21111125

2

My JSON tab show exact error.

– huocp
Nov 29 '18 at 5:15

add a comment |

+100

On the right of the menu bar with preview there is response with an arrow next to it click on that and switch it to JSON that should do the trick.

answered Nov 28 '18 at 19:24

Yehuda Schwartz

1,21111125

On the right of the menu bar with preview there is response with an arrow next to it click on that and switch it to JSON that should do the trick.

answered Nov 28 '18 at 19:24

Yehuda Schwartz

1,21111125

answered Nov 28 '18 at 19:24

Yehuda Schwartz

1,21111125

answered Nov 28 '18 at 19:24

Yehuda Schwartz

1,21111125

answered Nov 28 '18 at 19:24

Yehuda Schwartz

1,21111125

2

My JSON tab show exact error.

– huocp
Nov 29 '18 at 5:15

add a comment |

2

My JSON tab show exact error.

– huocp
Nov 29 '18 at 5:15

My JSON tab show exact error.

– huocp
Nov 29 '18 at 5:15

add a comment |

The browser's error message describes the requirements for this request to complete successfully.

The server must grant access to the requested resource to your remote domain by sending a Access-Control-Allow-Origin response header.

answered Nov 26 '18 at 19:50

UnP

7111

My response did have Access-Control-Allow-Origin: *. It is only not able to show up in dev tool, but the web page works perfectly.

– huocp
Nov 29 '18 at 5:15

add a comment |

The browser's error message describes the requirements for this request to complete successfully.

The server must grant access to the requested resource to your remote domain by sending a Access-Control-Allow-Origin response header.

answered Nov 26 '18 at 19:50

UnP

7111

My response did have Access-Control-Allow-Origin: *. It is only not able to show up in dev tool, but the web page works perfectly.

– huocp
Nov 29 '18 at 5:15

add a comment |

The browser's error message describes the requirements for this request to complete successfully.

The server must grant access to the requested resource to your remote domain by sending a Access-Control-Allow-Origin response header.

answered Nov 26 '18 at 19:50

UnP

7111

The browser's error message describes the requirements for this request to complete successfully.

The server must grant access to the requested resource to your remote domain by sending a Access-Control-Allow-Origin response header.

answered Nov 26 '18 at 19:50

UnP

7111

answered Nov 26 '18 at 19:50

UnP

7111

answered Nov 26 '18 at 19:50

UnP

7111

answered Nov 26 '18 at 19:50

UnP

7111

My response did have Access-Control-Allow-Origin: *. It is only not able to show up in dev tool, but the web page works perfectly.

– huocp
Nov 29 '18 at 5:15

add a comment |

My response did have Access-Control-Allow-Origin: *. It is only not able to show up in dev tool, but the web page works perfectly.

– huocp
Nov 29 '18 at 5:15

My response did have Access-Control-Allow-Origin: *. It is only not able to show up in dev tool, but the web page works perfectly.

– huocp
Nov 29 '18 at 5:15

add a comment |

The world is not ready for `fetch()`.

To solve this, I easily converted from fetch() to axios.

body became data

json decoded automatically

credentials became withCredentials

I also added this function to determine if the response was ok:

function ok(resp) {

  return resp && resp.status && resp.status >= 200 && resp.status < 400

}

That was all I needed to adjust in my case.

edited Dec 18 '18 at 5:02

answered Dec 18 '18 at 4:50

jchook

2,47812126

thanks, i have validated same on safari. fetch actually works in 12+. I tried in Safari Technology Preview as well. please check below pen in safari. you will see the network response. codepen.io/zellwk/full/QvLRbE. I am suspecting the .html response, though type is json.

– Ramesh
Dec 18 '18 at 15:20

Yes the actual network request works, but debugging becomes a pain.

– jchook
Dec 24 '18 at 3:03

add a comment |

The world is not ready for `fetch()`.

To solve this, I easily converted from fetch() to axios.

body became data

json decoded automatically

credentials became withCredentials

I also added this function to determine if the response was ok:

function ok(resp) {

  return resp && resp.status && resp.status >= 200 && resp.status < 400

}

That was all I needed to adjust in my case.

edited Dec 18 '18 at 5:02

answered Dec 18 '18 at 4:50

jchook

2,47812126

thanks, i have validated same on safari. fetch actually works in 12+. I tried in Safari Technology Preview as well. please check below pen in safari. you will see the network response. codepen.io/zellwk/full/QvLRbE. I am suspecting the .html response, though type is json.

– Ramesh
Dec 18 '18 at 15:20

Yes the actual network request works, but debugging becomes a pain.

– jchook
Dec 24 '18 at 3:03

add a comment |

The world is not ready for `fetch()`.

To solve this, I easily converted from fetch() to axios.

body became data

json decoded automatically

credentials became withCredentials

I also added this function to determine if the response was ok:

function ok(resp) {

  return resp && resp.status && resp.status >= 200 && resp.status < 400

}

That was all I needed to adjust in my case.

edited Dec 18 '18 at 5:02

answered Dec 18 '18 at 4:50

jchook

2,47812126

The world is not ready for `fetch()`.

To solve this, I easily converted from fetch() to axios.

body became data

json decoded automatically

credentials became withCredentials

I also added this function to determine if the response was ok:

function ok(resp) {

  return resp && resp.status && resp.status >= 200 && resp.status < 400

}

That was all I needed to adjust in my case.

edited Dec 18 '18 at 5:02

answered Dec 18 '18 at 4:50

jchook

2,47812126

edited Dec 18 '18 at 5:02

answered Dec 18 '18 at 4:50

jchook

2,47812126

answered Dec 18 '18 at 4:50

jchook

2,47812126

answered Dec 18 '18 at 4:50

jchook

2,47812126

thanks, i have validated same on safari. fetch actually works in 12+. I tried in Safari Technology Preview as well. please check below pen in safari. you will see the network response. codepen.io/zellwk/full/QvLRbE. I am suspecting the .html response, though type is json.

– Ramesh
Dec 18 '18 at 15:20

Yes the actual network request works, but debugging becomes a pain.

– jchook
Dec 24 '18 at 3:03

add a comment |

thanks, i have validated same on safari. fetch actually works in 12+. I tried in Safari Technology Preview as well. please check below pen in safari. you will see the network response. codepen.io/zellwk/full/QvLRbE. I am suspecting the .html response, though type is json.

– Ramesh
Dec 18 '18 at 15:20

Yes the actual network request works, but debugging becomes a pain.

– jchook
Dec 24 '18 at 3:03

thanks, i have validated same on safari. fetch actually works in 12+. I tried in Safari Technology Preview as well. please check below pen in safari. you will see the network response. codepen.io/zellwk/full/QvLRbE. I am suspecting the .html response, though type is json.

– Ramesh
Dec 18 '18 at 15:20

Yes the actual network request works, but debugging becomes a pain.

– jchook
Dec 24 '18 at 3:03

add a comment |

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