throw new Error in a Nunjucks filter results in unhandled promise rejection

[zachleat]

export default function(eleventyConfig) {
  eleventyConfig.addFilter("test", () => throw new Error("Invalid!"));
};

Nunjucks template:

{{ "hello" | test }}

[zachleat]

https://jakearchibald.com/2023/unhandled-rejections/

[zachleat]

Test case build results:

[11ty] Problem writing Eleventy templates: (more in DEBUG output)
[11ty] 1. Having trouble rendering njk template ./index.njk (via TemplateContentRenderError)
[11ty] 2. (./index.njk)
[11ty]   Error: Invalid! (via Template render error)
[11ty] 
[11ty] Original error stack trace: Template render error: (./index.njk)
[11ty]   Error: Invalid!
[11ty]     at Object._prettifyError (/Users/zachleat/Code/eleventy/node_modules/nunjucks/src/lib.js:32:11)
[11ty]     at /Users/zachleat/Code/eleventy/node_modules/nunjucks/src/environment.js:464:19
[11ty]     at Template.root [as rootRenderFunc] (eval at _compile (/Users/zachleat/Code/eleventy/node_modules/nunjucks/src/environment.js:527:18), <anonymous>:18:3)
[11ty]     at Template.render (/Users/zachleat/Code/eleventy/node_modules/nunjucks/src/environment.js:454:10)
[11ty]     at file:///Users/zachleat/Code/eleventy/src/Engines/Nunjucks.js:415:10
[11ty]     at new Promise (<anonymous>)
[11ty]     at file:///Users/zachleat/Code/eleventy/src/Engines/Nunjucks.js:414:11
[11ty]     at Template._render (file:///Users/zachleat/Code/eleventy/src/TemplateContent.js:594:25)
[11ty]     at async Template.renderPageEntryWithoutLayout (file:///Users/zachleat/Code/eleventy/src/Template.js:414:25)
[11ty]     at async TemplateMap.populateContentDataInMap (file:///Users/zachleat/Code/eleventy/src/TemplateMap.js:573:7)
[11ty] Wrote 0 files in 0.03 seconds (v3.0.0-alpha.14)

[zachleat]

Adding more information about the specific filter that failed:

~/Temp/eleventy-3295 ᐅ npx @11ty/eleventy
[11ty] Problem writing Eleventy templates: (more in DEBUG output)
[11ty] 1. Having trouble rendering njk template ./index.njk (via TemplateContentRenderError)
[11ty] 2. (./index.njk)
[11ty]   EleventyFilterError: Error in Nunjucks filter `test` (./index.njk) (via Template render error)
[11ty] 3. Invalid! (via Template render error)
[11ty] 
[11ty] Original error stack trace: Error: Invalid!
[11ty]     at Context.<anonymous> (file:///Users/zachleat/Temp/eleventy-3295/eleventy.config.js:3:9)
[11ty]     at Context.<anonymous> (file:///Users/zachleat/Code/eleventy/src/UserConfig.js:293:23)
[11ty]     at Context.<anonymous> (file:///Users/zachleat/Code/eleventy/src/Benchmark/BenchmarkGroup.js:35:23)
[11ty]     at Context.<anonymous> (file:///Users/zachleat/Code/eleventy/src/Engines/Nunjucks.js:112:15)
[11ty]     at Template.root [as rootRenderFunc] (eval at _compile (/Users/zachleat/Code/eleventy/node_modules/nunjucks/src/environment.js:527:18), <anonymous>:10:55)
[11ty]     at Template.render (/Users/zachleat/Code/eleventy/node_modules/nunjucks/src/environment.js:454:10)
[11ty]     at file:///Users/zachleat/Code/eleventy/src/Engines/Nunjucks.js:423:10
[11ty]     at new Promise (<anonymous>)
[11ty]     at file:///Users/zachleat/Code/eleventy/src/Engines/Nunjucks.js:422:11
[11ty]     at Template._render (file:///Users/zachleat/Code/eleventy/src/TemplateContent.js:594:25)
[11ty] Wrote 0 files in 0.03 seconds (v3.0.0-alpha.14)