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@aidenlx/iframe-worker
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A tiny WebWorker polyfill for the file://
protocol in less than 900b
Like pseudo-worker but using an
iframe
instead ofXMLHTTPRequest
. This polyfill should be mostly spec-compliant and supportsimportScripts
. It should pretty much be a drop-in replacement, at least for modern browsers which include a constructableEventTarget
andPromise
._
npm install iframe-worker
You can use the polyfill from unpkg.com (recommended):
<script src="https://unpkg.com/iframe-worker/polyfill"></script>
... or bundle the polyfill with your application:
import "iframe-worker/polyfill"
... or use IFrameWorker
programmatically:
import { IFrameWorker } from "iframe-worker"
The polyfill will only mount if the document is served via file://
.
In a WebWorker script, importScripts
is a synchronous
operation, as it will block the thread until the script was fully loaded and
evaluated. This is not supported in an iframe
. For this reason, the polyfill
for importScripts
included with this library will return a
Promise
, chaining all passed URLs into a sequence, making it awaitable.
Since awaiting anything else than a Promise
will wrap the awaited thing into
a Promise
, calls to importScripts
should practically behave
the same way for all protocols other than file://
. Thus, if you want to make
sure that your WebWorker works for all protocols, always await
all calls to
importScripts
.
MIT License
Copyright (c) 2020-2022 Martin Donath
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
FAQs
A tiny WebWorker polyfill for the file:// protocol
The npm package @aidenlx/iframe-worker receives a total of 1 weekly downloads. As such, @aidenlx/iframe-worker popularity was classified as not popular.
We found that @aidenlx/iframe-worker demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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