How to Fix a Web Game Whose Assets Are Not Served Compressed

Text-based web game assets compress extremely well, often by 70% or more, but only if the server actually compresses them and advertises it. Many static hosts leave compression off by default, so players download bloated files for no reason.

How to fix it

1. Check the response headers

Open the network tab and inspect a .js or .json response. If there is no Content-Encoding: br or gzip, the file is being served uncompressed.

2. Enable compression at the edge

Turn on Brotli/Gzip in your CDN or server config for text MIME types. Many hosts offer a single toggle; otherwise precompress files and serve the .br variant with the right header.

3. Skip compressing already-compressed assets

Do not gzip PNG, WebP, or audio that is already compressed, since it wastes CPU for no gain. Focus compression on JS, JSON, CSS, and uncompressed data.

Catching the ones you can't reproduce

The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.

Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.

This is where a tool like Bugnet earns its place. Its SDK captures every HTML5 error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.