Hey everyone, I’m MAD! I’ve been struggling with Azure Static Web Apps compression for over a month. You read that right – A MONTH.
Microsoft’s official docs states that Brotli compression is enabled by default and yet every time I deploy and run the app I get the uncompressed files. Blazor WASM by itself is a huge monster and not being able to at least compress it was a huge pain.
I tried really everything I found on the web, many times, over and over again.
- Using decode.js and decode.min.js (ref Microsoft docs)
- Editing staticwebapp.config.json like a thousand times trying different things
- Using a compression step as part of my Github Actions CI/CD even though by default Blazor is compressed when published (I was that desperate after thousands of trial and errors)
Nothing worked.
So let me show you, dear internet stranger, what fixed my problems, as I’m sure many of you will struggle with this too, so hopefully this will save you some hair.
The issue was… my antivirus ESET NOD 32’s HTTP Scanner. Yeah, that’s right. This feature, called Protocol filtering, was behind my compression nightmares the whole time.
So the fix is easy – just whitelist your domain’s IP address:
Sadly I couldn’t find a way to make it work with a domain name, which is far less fragile than using IP. If you did, please share your sorcery with us in the comments.
Anyways, hopefully this will save you from the troubles and the sleepless nights I had to go through…
Happy coding, folks 🧑🏼💻
A whole month dealing with Azure Static Web Apps compression? I feel your pain — the docs saying Brotli is “enabled by default” while it clearly isn’t working is incredibly frustrating. And with Blazor WASM already being a massive download, having compression fail completely must have made the app feel unusable. Did you ever find a workaround that actually fixed it?
Man, dealing with Blazor WASM file sizes is already a headache, so I can’t imagine fighting with Azure’s Brotli compression for a whole month. It’s so annoying when the official docs claim it’s enabled by default but you still end up with massive uncompressed files. Did you ever find a workaround for this, or is it still broken?
Man, dealing with Blazor WASM payload sizes without compression sounds like a total nightmare. It’s so frustrating when Microsoft’s documentation says Brotli is active by default but the actual deployment still serves uncompressed files. Did you ever find a way to get Azure Static Web Apps to actually compress them, or are you still stuck?
I completely feel your pain on this—Blazor WASM payload sizes are absolutely brutal without compression. It’s incredibly frustrating when Microsoft’s docs claim Brotli is enabled by default but it just doesn’t work out of the box. Did you finally find a workaround or a specific config setting to fix it?