waitForRender <timeout> causes invalid selector and DOMException.

[videki]

Running

mr-pdf --initialDocURLs='http://localhost:3000/docs/next' --waitForRender=5000 ....

causes the following error because the parameter is considered to be string in utils at the end in all cases, which expects it to be a selector:

`
Retrieving html from http://localhost:3000/docs/next

Rendering...
Error: Evaluation failed: DOMException: Failed to execute 'querySelector' on 'Document': '5000' is not a valid selector.
at predicate (eval at waitForPredicatePageFunction (:2:21), :6:20)
at eval (eval at waitForPredicatePageFunction (:2:21), :25:7)
at pollMutation (puppeteer_evaluation_script:17:31)
at waitForPredicatePageFunction (puppeteer_evaluation_script:9:18)
at ExecutionContext._evaluateInternal (/Users/.../node_modules/puppeteer/lib/ExecutionContext.js:122:13)
at processTicksAndRejections (node:internal/process/task_queues:96:5)
at async WaitTask.rerun (/Users/.../node_modules/puppeteer/lib/DOMWorld.js:570:17)
-- ASYNC --
at ExecutionContext. (/Users/.../node_modules/puppeteer/lib/helper.js:111:15)
at WaitTask.rerun (/Users/.../node_modules/puppeteer/lib/DOMWorld.js:570:65)
at processTicksAndRejections (node:internal/process/task_queues:96:5)
-- ASYNC --
at Frame. (/Users/.../node_modules/puppeteer/lib/helper.js:111:15)
at Frame.waitFor (/Users/.../node_modules/puppeteer/lib/FrameManager.js:612:19)
at Page.waitFor (/Users/.../node_modules/puppeteer/lib/Page.js:1113:29)
at Object.generatePDF (/Users/.../node_modules/mr-pdf/lib/utils.js:23:32)
at processTicksAndRejections (node:internal/process/task_queues:96:5)
`

[zebracookie]

Anyone got a solution for that ? Images load inconsistently on my side and --waitForRender does not work.

Thanks :)

[dannief]

I am also getting this issue