Allow to pass custom compression implementation to replay

[mydea]

Since #6739 is sadly not really possible due to browser constraints, another way to allow people to opt-out of the worker behavior while still having compression could be to allow passing in a custom compression implementation.

We could provide this implementation ourselves, but let it be tree shaken away if not used. This is how this could look like:

import * as Sentry from '@sentry/browser';

const replay = new Replay({
  compression: Sentry.getReplayEventCompressionCallback()
});

Where getReplayEventCompressionCallback would return a function that uses pako.

[AbhiPrasad]

Allowing it to be treeshaken this way is a pretty substantial change - every person who is using Replay then has to go in and update their init to add this new snippet.

I would rather
a) allow people to pass in a compression strategy but keep the default without treeshaking it out
b) provide a bundler flag that users can use to tree-shake out this behaviour, but it only works if you either disable compression or pass in a compression strategy.

[mydea]

Allowing it to be treeshaken this way is a pretty substantial change - every person who is using Replay then has to go in and update their init to add this new snippet.

I would rather a) allow people to pass in a compression strategy but keep the default without treeshaking it out b) provide a bundler flag that users can use to tree-shake out this behaviour, but it only works if you either disable compression or pass in a compression strategy.

So the idea is to allow to pass in an optional config, not require it. Nothing should change for existing (or new) users, unless they specifically choose to pass in a compression function.

[github-actions]

This issue has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you label it Status: Backlog or Status: In Progress, I will leave it alone ... forever!

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"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀

[mydea]

Closing for now, as not sure if we actually need/want to provide this. It should also be OK to send stuff uncompressed, if it doesn't work any other way.