TODO:
- parallelize fetching of remote scripts
- make it possible to provide backup urls for remote scripts
- make it possible to cache remote scripts
- make it possible to use wildcards or something similar to be able to assign a script set to -- CRUCIAL
  a set of domains or to a set of possible queries at a url
- make it possible to automatically download page's served scripts and save them (of course, this by itself -- CRUCIAL
  would give little benefit, but it will make it easy to modify this set of scripts - useful, if some of
  those scripts are already free, as is often the case)
  - also, find some convenient way to automatically re-add "on" events ("onclick" & friends)
- add some good, sane error handling
- make it possible to export page settings in some format -- CRUCIAL
- get rid of those warnings and exceptions in console (many are not even related to this extension;
  who invented this thing?) (gecko-only)
- make page settings easily and conveniently editable in popup -- CRUCIAL
  - in popup make it possible to edit both main frame page's
    settings and settings for pages that currently happen to
    live in iframes
- add some nice styling to settings page
- find some way not to require each chrome user to modify manifest.json
- rename the extension to something good
- port to gecko-based browsers -- CRUCIAL
- rename "bundles" to "bags" to avoid confusion with Web Bundles
- make it possible to modify CSP to suit our custom scripts' needs
  - find a way to additionally block all other scripts using CSP
    as an additional safety measure
- make blocking more torough -- CRUCIAL
  - also block intrinsics -- CRUCIAL
  - mind the data: urls -- CRUCIAL
- find out how and make it possible to whitelist non-https urls
- create a repository to host scripts
  - enable the extension to automatically fetch script substitutes from the repo
- make it possible to inject scripts to arbitrary places in DOM
  - make script blocking code omit those scripts
- facilitate waiting for script injection until DOM has loaded
- check if prerendering has to be blocked -- CRUCIAL
- block prefetch
- rearrange files in extension, add some mechanism to build the extension
- all solutions to modularize js code SUCK; come up with own simple DSL
  to manage imports/exports

DONE:
- use non-predictable value in place of "myext-allow", utilizing hashes -- DONE 2021-05-12
- stop using modules (not available on all browsers) -- DONE 2021-05-12
- clean up the remnants of LibreJS -- DONE 2021-05-12
- implement whitelisting -- DONE 2021-05-07
- find way to also block scripts in non-http pages (e.g. file://) -- DONE 2021-05-07 (via content scripts, may not be perfect)
  (NoScript seems to be doing this through CSP)
- make page settings easily and conveniently editable in a separate window/tab -- DONE 2021-05-05
- replace comparisons with stricter ones (e.g. do `if(foo === undefined)` instead of `if(!foo)`) -- DONE
- make local storage safe (serialize storage accesses in background script) -- DONE
- split main.js into multiple files -- DONE 2021-01-05
- make it possible to store entire script files in storage (not just links) -- DONE 2021-01-05
  - make it possible to re-use the same script or set of scripts multiple times -- DONE 2021-01-05