IFrame chart can not explor


2020-08-19 19:08:55,130:INFO:root:------------k>viz_type-----v>iframe
2020-08-19 19:08:55,130:INFO:root:------------k>slice_id-----v>1522
2020-08-19 19:08:55,130:INFO:root:------------k>url_params-----v>{}
2020-08-19 19:08:55,130:INFO:root:------------k>granularity_sqla-----v>None
2020-08-19 19:08:55,130:INFO:root:------------k>time_grain_sqla-----v>P1D
2020-08-19 19:08:55,130:INFO:root:------------k>time_range-----v>Last day
2020-08-19 19:08:55,130:INFO:root:------------k>url-----v>https://www.youtube.com/embed/AdSZJzb-aX8
2020-08-19 19:08:55,156:INFO:root:Cache key: None
2020-08-19 19:08:55,156:ERROR:root:'NoneType' object has no attribute 'to_dict'
Traceback (most recent call last):
File "/usr/local/py3env/lib64/python3.6/site-packages/superset/views/core.py", line 1149, in generate_json
payload = viz_obj.get_payload()
File "/usr/local/py3env/lib64/python3.6/site-packages/superset/viz.py", line 371, in get_payload
payload['data'] = self.get_data(df)
File "/usr/local/py3env/lib64/python3.6/site-packages/superset/viz.py", line 485, in get_data
return self.get_df().to_dict(orient='records')
AttributeError: 'NoneType' object has no attribute 'to_dict'
IFrame chart can not explor

2020-08-19 19:08:55,130:INFO:root:------------k>viz_type-----v>iframe
2020-08-19 19:08:55,130:INFO:root:------------k>slice_id-----v>1522
2020-08-19 19:08:55,130:INFO:root:------------k>url_params-----v>{}
2020-08-19 19:08:55,130:INFO:root:------------k>granularity_sqla-----v>None
2020-08-19 19:08:55,130:INFO:root:------------k>time_grain_sqla-----v>P1D
2020-08-19 19:08:55,130:INFO:root:------------k>time_range-----v>Last day
2020-08-19 19:08:55,130:INFO:root:------------k>url-----v>https://www.youtube.com/embed/AdSZJzb-aX8
2020-08-19 19:08:55,156:INFO:root:Cache key: None
2020-08-19 19:08:55,156:ERROR:root:'NoneType' object has no attribute 'to_dict'
Traceback (most recent call last):
File "/usr/local/py3env/lib64/python3.6/site-packages/superset/views/core.py", line 1149, in generate_json
payload = viz_obj.get_payload()
File "/usr/local/py3env/lib64/python3.6/site-packages/superset/viz.py", line 371, in get_payload
payload['data'] = self.get_data(df)
File "/usr/local/py3env/lib64/python3.6/site-packages/superset/viz.py", line 485, in get_data
return self.get_df().to_dict(orient='records')
AttributeError: 'NoneType' object has no attribute 'to_dict'