Problem/Motivation
Uncaught Error: Canvas is already in use. Chart with ID '0' must be destroyed before the canvas can be reused.
There seems to be no difference whether BigPipe is used or not. I still posted both the results. Maybe it provides information.
Not using BigPipe:
Uncaught Error: Canvas is already in use. Chart with ID '0' must be destroyed before the canvas can be reused.
Chart https://unpkg.com/chart.js@3.7.1/dist/chart.js:6619
attach https://mysite/modules/contrib/charts/modules/charts_chartjs/js/charts_chartjs.js?v=1.x:34
attach https://mysite/modules/contrib/charts/modules/charts_chartjs/js/charts_chartjs.js?v=1.x:21
attachBehaviors https://mysite/core/misc/drupal.js?v=10.1.4:166
attachBehaviors https://mysite/core/misc/drupal.js?v=10.1.4:162
<anonymous> https://mysite/core/misc/drupal.init.js?v=10.1.4:32
listener https://mysite/core/misc/drupal.init.js?v=10.1.4:20
domReady https://mysite/core/misc/drupal.init.js?v=10.1.4:26
<anonymous> https://mysite/core/misc/drupal.init.js?v=10.1.4:31
<anonymous> https://mysite/core/misc/drupal.init.js?v=10.1.4:34
chart.js:6619:13
Chart https://unpkg.com/chart.js@3.7.1/dist/chart.js:6619
attach https://mysite/modules/contrib/charts/modules/charts_chartjs/js/charts_chartjs.js?v=1.x:34
forEach self-hosted:203
attach https://mysite/modules/contrib/charts/modules/charts_chartjs/js/charts_chartjs.js?v=1.x:21
attachBehaviors https://mysite/core/misc/drupal.js?v=10.1.4:166
forEach self-hosted:203
attachBehaviors https://mysite/core/misc/drupal.js?v=10.1.4:162
<anonymous> https://mysite/core/misc/drupal.init.js?v=10.1.4:32
listener https://mysite/core/misc/drupal.init.js?v=10.1.4:20
(Async: EventListener.handleEvent)
domReady https://mysite/core/misc/drupal.init.js?v=10.1.4:26
<anonymous> https://mysite/core/misc/drupal.init.js?v=10.1.4:31
<anonymous> https://mysite/core/misc/drupal.init.js?v=10.1.4:34
With BigPipe:
Uncaught Error: Canvas is already in use. Chart with ID '0' must be destroyed before the canvas can be reused.
Chart https://unpkg.com/chart.js@3.7.1/dist/chart.js:6619
attach https://mysite/modules/contrib/charts/modules/charts_chartjs/js/charts_chartjs.js?v=1.x:34
attach https://mysite/modules/contrib/charts/modules/charts_chartjs/js/charts_chartjs.js?v=1.x:21
attachBehaviors https://mysite/core/misc/drupal.js?v=10.1.4:166
attachBehaviors https://mysite/core/misc/drupal.js?v=10.1.4:162
<anonymous> https://mysite/core/modules/big_pipe/js/big_pipe.js?v=10.1.4:118
<anonymous> https://mysite/core/modules/big_pipe/js/big_pipe.js?v=10.1.4:138
chart.js:6619:13
Chart https://unpkg.com/chart.js@3.7.1/dist/chart.js:6619
attach https://mysite/modules/contrib/charts/modules/charts_chartjs/js/charts_chartjs.js?v=1.x:34
forEach self-hosted:203
attach https://mysite/modules/contrib/charts/modules/charts_chartjs/js/charts_chartjs.js?v=1.x:21
attachBehaviors https://mysite/core/misc/drupal.js?v=10.1.4:166
forEach self-hosted:203
attachBehaviors https://mysite/core/misc/drupal.js?v=10.1.4:162
<anonymous> https://mysite/core/modules/big_pipe/js/big_pipe.js?v=10.1.4:118
<anonymous> https://mysite/core/modules/big_pipe/js/big_pipe.js?v=10.1.4:138
Steps to reproduce
I created a charts block view (s. screenshot) "C", attached it inside a
viewfield β
"VF" on a content type.
Then I created a second view (block) "B" showing a list of nodes of that content type as table view with two fields: title and the previously created viewfield "VF" containing the chart.
Individually each node shows its' chart.
In views editor everything works. Each row has its' chart.
But: the view block B contains the same row multiple times. Causing the same chart to be displayed in multiple rows.
When I then put the outer view block B as view inside a new viewfield on another content type the above error occurs - only on duplicate rows. Otherwise it works.
chart.js is the only library that works in this scenario. I tried C3, billboard and google which all won't show anything at all.
Proposed resolution
Remaining tasks
User interface changes
API changes
Data model changes