WMS GetFeatureInfo requests not working

[qgib]

Author Name: James Passmore (@nmtoken)
Original Redmine Issue: 17498
Affected QGIS version: master
Redmine category:web_services_clients/wms
Assignee: Alessandro Pasotti

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Trying to do a WMS GetFeatureInfo request results in an error such as:

msWMSFeatureInfo(): WMS server error. Invalid I/J values

(on a local instance of MapServer)

or

Parameter X(or Y,I,J) out of scope

(on a remote ArcGIS service)

With a request like:

hydrogeology/MapServer/WmsServer?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetFeatureInfo&BBOX=-1.86174381807687928,52.1834395954103627,-0.14115908462290472,53.72364044551835605&CRS=CRS:84&WIDTH=868&HEIGHT=777&LAYERS=Hydrogeology&STYLES=&FORMAT=image/png&QUERY_LAYERS=Hydrogeology&INFO_FORMAT=text/html&I=939&J=27102)

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• GFI-notwroking.png (James Passmore)

[qgib]

Author Name: James Passmore (@nmtoken)

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Looking at the local logs, requests to the MapServer instance that result in the error are like:

/cgi-bin/exemplars/BGS_Bedrock_and_Superficial_Geology/wms?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetFeatureInfo&BBOX=53.33980444241124275,-2.24691918108755129,54.12614968139177307,-1.45132282164842641&CRS=EPSG:4326&WIDTH=516&HEIGHT=510&LAYERS=GBR_BGS_625k_SLS&STYLES=&FORMAT=image/png&QUERY_LAYERS=GBR_BGS_625k_SLS&INFO_FORMAT=text/html&I=1457&J=35104

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Can you provide the full URL of the endpoint? what is the endpoint? mapserver? geoserver? else?

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• status_id was changed from Open to Feedback

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Does the same endpoint work as expected on 2.18.14?

[qgib]

Author Name: James Passmore (@nmtoken)

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The following MapServer WMS has the issue on: QGIS version 2.99.0-Master QGIS code revision af5b2a7

http://ogc.bgs.ac.uk/cgi-bin/TFL-PSI/ows?

The same service works on: QGIS version 2.18.3 QGIS code revision 77b8c3d

Here's an example GFI that works on the service:

http://ogc.bgs.ac.uk/cgi-bin/TFL-PSI/ows?language=eng&REQUEST=GetFeatureInfo&SERVICE=WMS&VERSION=1.3.0&LAYERS=GBR_Stoke-on-Trent_ESA_EN_5k_psi_TS&STYLES=&FORMAT=image/png&BGCOLOR=0xFFFFFF&TRANSPARENT=TRUE&CRS=EPSG:4326&BBOX=53.0052235378464,-2.28573545848794,53.1251768672774,-2.13175281574312&WIDTH=1086&HEIGHT=846&QUERY_LAYERS=GBR_Stoke-on-Trent_ESA_EN_5k_psi_TS&i=337&j=255&info_format=text/html&

The following ArcGIS service is the service in the report:

https://map.bgs.ac.uk/arcgis/services/GeoIndex_Onshore/hydrogeology/MapServer/WmsServer?

GFI works on: QGIS version 2.18.3 QGIS code revision 77b8c3d

The following GeoServer service doesn't work on: QGIS version 2.99.0-Master QGIS code revision af5b2a7

http://ogc.bgs.ac.uk:80/digmap625k_gsml_insp_gs/ows?

It works as expected on: QGIS version 2.18.3 QGIS code revision 77b8c3d

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• priority_id was changed from Normal to High
• regression was changed from 0 to 1
• operating_system was changed from Windows Server 2016 to
• status_id was changed from Feedback to Open

[qgib]

Author Name: Alessandro Pasotti (@elpaso)

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• assigned_to_id was configured as Alessandro Pasotti

[qgib]

Author Name: Anónimo (Anónimo)

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Applied in changeset 94a1e68.

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• status_id was changed from Open to Closed
• done_ratio was changed from 0 to 100

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• resolution was changed from to fixed/implemented