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Posted to notifications@superset.apache.org by GitBox <gi...@apache.org> on 2022/01/21 10:00:22 UTC

[GitHub] [superset] suraj-12 opened a new issue #18126: error Unexpected token < in JSON at position 0

suraj-12 opened a new issue #18126:
URL: https://github.com/apache/superset/issues/18126


   use case is to embed superset dasboards in a web application as iframe but while doing so on some visualization getting Unexpected token < in JSON at position 0 error. 
   
   normally in superset application same dashboard is working fine but while sahring as iframe only this issue is coming.
   
   superset version 1.32
   
   html page content for testing:
   <html>
   <iframe name="iframe1" src="https://xxxxxxxxxxx-
   ![supersetiframeerror](https://user-images.githubusercontent.com/48901138/150507033-1e215d15-2824-41f8-9e61-6e7834add800.JPG)
   superset.ad.infosys.com/superset/dashboard/13/" frameborder="0" 
       marginheight="0" 
       marginwidth="0" 
       width="100%" 
       height="100%" 
       scrolling="auto"></iframe>
   </html>


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[GitHub] [superset] gndsnts commented on issue #18126: error Unexpected token < in JSON at position 0

Posted by GitBox <gi...@apache.org>.

gndsnts commented on issue #18126:
URL: https://github.com/apache/superset/issues/18126#issuecomment-1021178984


   Sorry to repeat this issue, but i think is better wait for this solution, and verify if it works correctly. After confirm, i will close my issue.
   


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[GitHub] [superset] mdeshmu commented on issue #18126: error Unexpected token < in JSON at position 0

Posted by GitBox <gi...@apache.org>.

mdeshmu commented on issue #18126:
URL: https://github.com/apache/superset/issues/18126#issuecomment-1072068867


   @suraj-12 can you provide a documentation on how you are running superset on AWS ECS, if you have ?


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[GitHub] [superset] geido commented on issue #18126: error Unexpected token < in JSON at position 0

Posted by GitBox <gi...@apache.org>.

geido commented on issue #18126:
URL: https://github.com/apache/superset/issues/18126#issuecomment-1019984372


   Hello @suraj-12 thanks for reporting this issue. Would you please provide more information concerning those viz types for which you are experiencing this problem? Thank you!


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[GitHub] [superset] suddjian closed issue #18126: error Unexpected token < in JSON at position 0

Posted by GitBox <gi...@apache.org>.

suddjian closed issue #18126:
URL: https://github.com/apache/superset/issues/18126


   


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[GitHub] [superset] thalesvon commented on issue #18126: error Unexpected token < in JSON at position 0

Posted by GitBox <gi...@apache.org>.

thalesvon commented on issue #18126:
URL: https://github.com/apache/superset/issues/18126#issuecomment-1065160977

Hi @suddjian,

> I believe this is fixed by https://github.com/apache/superset/pull/17530

Could you elaborate what fixed this issue on the above PR? I still have the same issue. Here is a bit more of context on my scenario.

## Environment

- AWS ECS Fargate Platform 1.3.0, superset running on Docker.
- Superset version 1.4.1
- Authentication OAuth with Google
- Additional settings on `superset_config.py`

```python
ENABLE_PROXY_FIX = True
PUBLIC_ROLE_LIKE_GAMMA = True

ENABLE_CORS = True
CORS_OPTIONS = {
'supports_credentials': True,
'allow_headers': ['*'],
'resources':['*'],
'origins': ['https://MY_SUPERSET.DOMAIN/','https://sites.google.com/', 'https://MY_CUSTOM_APP.DOMAIN'],
}
```

## Use Case

I am trying to embedded Charts and Dashboard into Google Sites and my webApp.

I tried embedding using two approaches:

1. **iframe**:

```html
<iframe
width="100%"
height="100%"
seamless
frameBorder="0"
scrolling="no"
src="https://MY_SUPERSET.DOMAIN/superset/explore/?r=11&standalone=1"
>
</iframe>
```
This led to the error message on the iframe `Unexpected token < in JSON at position 0`.

2. Embbeding by URL. Using the link provided by Superset on the chart explore page **Copy chart URL to clipboard**:

![image](https://user-images.githubusercontent.com/19493900/157883043-1a2a8a79-0e46-499b-bd56-a51ccc14525b.png)

This also led to the error message on the iframe `Unexpected token < in JSON at position 0`.

![image](https://user-images.githubusercontent.com/19493900/157883865-708aa8c6-2fbc-40b8-91e6-d4608f41ca83.png)

## Additional Information

- If I open the URL on the `src`tag of my iframe and open I a new tab of my browser, I can see the Chart just fine, the error only apprear when the chart is embbeded.

![image](https://user-images.githubusercontent.com/19493900/157885719-899df95c-57d8-42b9-8e8a-be00317dd28d.png)

- I also tried adding `EMBEDDED_SUPERSET=True` to `superset_config.py` but that did not change anything.

Any guidance is appreciated.

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[GitHub] [superset] suddjian commented on issue #18126: error Unexpected token < in JSON at position 0

Posted by GitBox <gi...@apache.org>.

suddjian commented on issue #18126:
URL: https://github.com/apache/superset/issues/18126#issuecomment-1021770245


   I believe this is fixed by #17530 


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[GitHub] [superset] gndsnts commented on issue #18126: error Unexpected token < in JSON at position 0

Posted by GitBox <gi...@apache.org>.

gndsnts commented on issue #18126:
URL: https://github.com/apache/superset/issues/18126#issuecomment-1021178984


   Sorry to repeat this issue, but i think is better wait for this solution, and verify if it works correctly. After confirm, i will close my issue.
   


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[GitHub] [superset] suraj-12 commented on issue #18126: error Unexpected token < in JSON at position 0

Posted by GitBox <gi...@apache.org>.

suraj-12 commented on issue #18126:
URL: https://github.com/apache/superset/issues/18126#issuecomment-1020001669


   ![iframe issue](https://user-images.githubusercontent.com/48901138/150775224-a68944d5-08dc-460a-be6b-9ae02af65b18.JPG)
   
   Facing issues in filters, metrics and pie charts


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[GitHub] [superset] suraj-12 commented on issue #18126: error Unexpected token < in JSON at position 0

Posted by GitBox <gi...@apache.org>.

suraj-12 commented on issue #18126:
URL: https://github.com/apache/superset/issues/18126#issuecomment-1020002306


   but if i use same url in browser then there is no issue. only while integrating it with iframe i was getting this issue
   


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[GitHub] [superset] thalesvon commented on issue #18126: error Unexpected token < in JSON at position 0

Posted by GitBox <gi...@apache.org>.

thalesvon commented on issue #18126:
URL: https://github.com/apache/superset/issues/18126#issuecomment-1068473985


   For anyone interested on this thread, the error message was misleading. 
   I found an error on the superset logs with the message:
   
   `The CSRF session token is missing`
   
   I added the following to my `superset_config.py` and the iframe worked like a charm.
   
   ```python
   SESSION_COOKIE_SAMESITE = None
   ```
   
   This issue describes the CSRF token error: https://github.com/apache/superset/issues/8382


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[GitHub] [superset] mdeshmu commented on issue #18126: error Unexpected token < in JSON at position 0

Posted by GitBox <gi...@apache.org>.

mdeshmu commented on issue #18126:
URL: https://github.com/apache/superset/issues/18126#issuecomment-1072068867


   @suraj-12 can you provide a documentation on how you are running superset on AWS ECS, if you have ?


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