Slow loading on sourcegraph pages with big files

[sluongng]

Describe the bug

File load very slowly with vimium-c enable vs without.

To Reproduce

Steps to reproduce the behavior:

1. Go to https://sourcegraph.com/github.com/bazelbuild/remote-apis@aa29b91f336b9be2c5370297210b67a6654c0b72/-/blob/build/bazel/remote/execution/v2/remote_execution.pb.go?L55
2. Try to scroll on the file with / without Vimium-C enabled.

Browser, OS and Vimium C versions

• Browser name: Chrome
• Browser version: Version 106.0.5249.103 (Official Build) (x86_64)
• Vimium C version: 1.99.3
• OS name and version: MacOS latest

Google Chrome | 106.0.5249.103 (Official Build) (x86_64)
-- | --
Revision | 182570408a1f25ab2731ef5f283b918df9b9f956-refs/branch-heads/5249_91@{#6}
OS | macOS Version 12.6 (Build 21G115)

Here is a profiling of the page

and tracing into the "Timer Fired" stacks showed that it's from Vimium-C minified JS. Disabling Vimium-C and the issue is gone.

[gdh1995]

Confirmed and it can be fixed in a future version.

[gdh1995]

If you accept a zip package to test, you may try this: vimium-c-1.99.3-dev-chrome.zip, though the way the version works around this issue is not perfect.

It's because [].indexOf.call(HTMLCollection, Element) in content/extend_click.ts:386 runs too slow, and the page injects much more click listeners than it needs.

[gdh1995]

Hello, v1.99.90 has been released on Chrome Web Store, and you may take a try.