Cannot read properties of undefined (reading 'setAttribute')

[mgalasso]

In Angular 16, during a build (ng build), there is an unhandled error within critters.js:519:30

Here is the code snippet within critters.js:
if (!crittersContainer) {
document.documentElement.setAttribute('data-critters-container', '');
crittersContainer = document.documentElement;
}

Here is the error message:
[error] TypeError: Cannot read properties of undefined (reading 'setAttribute')
at createDocument (C:\Development\sourcecode\sequoia\node_modules\critters\dist\critters.js:519:30)
at CrittersExtended.process (C:\Development\sourcecode\sequoia\node_modules\critters\dist\critters.js:1123:22)
at InlineCriticalCssProcessor.process (C:\Development\sourcecode\sequoia\node_modules@angular-devkit\build-angular\src\utils\index-file\inline-critical-css.js:167:40)
at C:\Development\sourcecode\sequoia\node_modules@angular-devkit\build-angular\src\utils\index-file\index-html-generator.js:123:64
at IndexHtmlGenerator.process (C:\Development\sourcecode\sequoia\node_modules@angular-devkit\build-angular\src\utils\index-file\index-html-generator.js:65:34)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
at async execute (C:\Development\sourcecode\sequoia\node_modules@angular-devkit\build-angular\src\builders\browser-esbuild\index.js:107:47)
at async withSpinner (C:\Development\sourcecode\sequoia\node_modules@angular-devkit\build-angular\src\tools\esbuild\utils.js:73:16)
at async buildEsbuildBrowserInternal (C:\Development\sourcecode\sequoia\node_modules@angular-devkit\build-angular\src\builders\browser-esbuild\index.js:207:18)
at async handleAsyncIterator (C:\Development\sourcecode\sequoia\node_modules@angular-devkit\architect\src\api.js:35:28)

As a consequence, the index.html cannot be built within the Angular project. (Index html generation failed.)

[Daniel Lehner]

i get a similar one with angular 16. and yes, only on ng build. the ng serve works perfect

✖ Index html generation failed. document.documentElement.setAttribute is not a function

[Marco Feicht]

I'm facing the same issue in Next.js 13 and critters@0.0.20. It only happens with server-side rendering in some cases

[Luis Monsalve]

same here in vite

[saenif]

same here. Angular 17. ng serve working perfectly. ng build failling with Index html generation failed. Cannot read properties of undefined (reading 'setAttribute') error

[Briouya Asmae]

Same here with Angular 17

[KRS-envisageworld]

Also, facing the same issue while building the application. Does anyone know the root cause of this error?