Ionic app hosted on firebase requires cache clear - firebase

I have an ionic 4 app hosted on firebase and when I push an update, my users have to clear their cache to load the newest version of the app.
I've searched around a bit and modified my firebase.json to reflect the following:
{
"hosting": {
"public": "www",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"headers": [
{ "source":"/service-worker.js", "headers": [{"key": "Cache-Control", "value": "no-cache"}] }
],
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
]
}
}
I thought this worked, but today I pushed an update and it required me to clear my cache. Does anyone have other ideas on how to force an update?

Try changing this
"headers": [{"key": "Cache-Control", "value": "no-cache"}]
to this
"headers": [{"key": "Cache-Control", "value": "no-cache, no-store, must-revalidate"]
Or this
"headers": [{"key": "Cache-Control", "value": "public, max-age=0"}]
Also, you are setting the rule for "source" : "/service-worker.js", is that what you want?
I think you want this :
"headers": [
{
"source": "/**",
"headers": [
{
"key": "Cache-Control",
"value": "no-cache, no-store, must-revalidate"
}
]
}]
See what they do in this answer
This could reduce performances for the users

Related

Specify what firebase hosting config use when deploying

I am using firebase to deploy a react application.
I have 3 environments, dev/stg/prod.
I would like to set the header to "NO CACHE" in dev and stg but allow cache in production.
so basically :
for prod
{
"hosting": [
{
"target": "core",
"public": "dist/apps/core",
"ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
"headers": [
{
"source": "**/*.#(jpg|svg|jpeg|gif|png|js|css)",
"headers": [
{
"key": "Cache-Control",
"value": "max-age=5256000"
}
]
},
{
"source": "**/*.#(eot|otf|ttf|ttc|woff|font.css)",
"headers": [
{
"key": "Cache-Control",
"value": "max-age=5256000"
}
]
}
],
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
]
}
]
}
and this on stg dev
"headers": [
{
"source": "/**",
"headers": [
{
"key": "Cache-Control",
"value": "no-cache, no-store, must-revalidate"
}
]
},
{
"source": "**/*.#(jpg|jpeg|gif|png|svg|webp|js|css|eot|otf|ttf|ttc|woff|woff2|font.css)",
"headers": [
{
"key": "Cache-Control",
"value": "max-age=604800"
}
]
}
]
I couldn't find a way to specify what firebase.json config use when executing a firebase:deploy Is there some way to set something similar up ?

Firebase hosting CSP nonce implementation

I'm have been working on a CSP for my Firebase hosted website, a large number of request are block by the CSP because GTM (Google Tag Manager) is in inline script.
I'm using Firebase Analytics, which is the reason for GTM being injected into the page.
I have read that I can use a nonce [1], which in most cases is an non issue to implement.
How would this be implemented using Firebase hosting? - From my research Firebase hosting headers can't be modified after deployment.
1: https://developers.google.com/tag-manager/web/csp
Yes you can, you should have a firebase.json file in root of project folder, you can change your headers in it, check my file:
{
"hosting": {
"public": "dist/browser",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
],
"headers": [
{
"source": "**/*.#(jpg|jpeg|gif|png|webp|eot|otf|ttf|ttc|woff)",
"headers": [
{
"key": "Cache-Control",
"value": "max-age=7200"
}
]
},
{
"source": "**/*.#(html|js|css)",
"headers": [
{
"key": "Cache-Control",
"value": "no-cache, no-store, must-revalidate"
}
]
},
{
"source": "**",
"headers": [
{
"key": "X-Frame-Options",
"value": "SAMEORIGIN"
}
]
},
{
"source": "**",
"headers": [
{
"key": "X-Content-Type-Options",
"value": "nosniff"
}
]
},
{
"source": "**",
"headers": [
{
"key": "Referrer-Policy",
"value": "strict-origin"
}
]
},
{
"source": "**",
"headers": [
{
"key": "Permissions-Policy",
"value": "geolocation=(), microphone=(), gyroscope=()"
}
]
}
]
}
}
Unfortunately i was obligated to remove my csp from it...

Firebase hosting header firebase.json not working

We are trying to set Cache-control in order to avoid aggressive caching by browsers. Unfortunately, we can't seem to get firebase to actually set this header. Here is our
firebase.json
{
"hosting": {
"public": "public",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
],
"headers": [
{
"source": "**",
"headers": [
{
"key": "Cache-Control",
"value": "no-cache, no-store, must-revalidate"
}
]
},
{
"source": "**/*.#(jpg|jpeg|gif|png|svg|webp|eot|otf|ttf|ttc|woff|woff2)",
"headers": [
{
"key": "Cache-Control",
"value": "max-age=604800"
}
]
}
]
}
}
We thought maybe our blob pattern matching was off so we have tried every combination you can imagine. **/*, **/, /**, etc. We can't figure out why these headers are not being applied. Any help would be very appreciated.
Turns out the above actually works. It's just that chrome was caching the responses (the very thing we were trying to fix). When testing this make sure to use incognito mode.

Blank page when deploying Quasar app to Firebase

I'm using Quasar "^1.14.1", and I'm trying to deploy to Firebase. I'm building first with quasar build -m spa, and the deployment is successful. However the resulting page is blank.
This is my firebase.json:
{
"hosting": {
"headers": [{
"source": "/**",
"headers": [{
"key": "Cache-Control",
"value": "no-cache, no-store, must-revalidate"
}]
},
{
"source": "**/*.#(jpg|jpeg|gif|png|svg|webp|js|css|eot|otf|ttf|ttc|woff|woff2|font.css)",
"headers": [{
"key": "Cache-Control",
"value": "max-age=604800"
}]
}
],
"site": "mysitename",
"public": "dist/spa",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [{
"source": "**",
"destination": "/dist/spa/index.html"
}]
}
}
I've also tried changing the destination to "/index.html". No luck. I'm not sure what else to do. There are no errors in build or deployment.
Figured it out. I'm using Firebase and dotenv, and I forgot to include my Firebase credentials in .env.prod.

Firebase Hosting Deployment Error HTTP 400 Error

I was trying to redeploy my react app on firebase after fixing some issues. But redeploying is giving errors. Not sure what the problem is.
I also tried to look into the answers provided in other posts but nothing worked for me.
firebase.json details below:
{
"hosting": {
"public": "build",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [{
"source": "**",
"destination": "/index.html",
"headers": [{
"key": "Cache-Control",
"value": "max-age=0"
}]
}]
}
}
Error: HTTP Error: 400, hosting.rewrites[0] is not exactly one from
[subschema 0],[subschema 1]
This is the first time I have come across this error. So no idea what the problem is.
Headers options look line inside of rewrites parameters. instead, you need to move out as:
"hosting": {
"public": "build",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [{
"source": "**",
"destination": "/index.html"
}],
"headers": [{
"key": "Cache-Control",
"value": "max-age=0"
}]
}
Okays so the problem was the headers. Removing it solved the issue. I had kept it there so that the website will reload when the user refreshes the website after it's been updated. It was working fine previously. Dont know what the issue is. Going to keep this open if someone else can solve this issue or tell me what I did wrong. :)
You are missing the source option for the headers, take a look at how I structured mine:
{
"hosting": {
"public": "build",
"headers": [
{
"source": "/service-worker.js",
"headers": [
{
"key": "Cache-Control",
"value": "no-cache"
}
]
}
]
}
}
The documentation for how to structure the headers is here.
"hosting": {
"public": "build",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [{
"source": "**",
"destination": "/index.html"
}],
"headers": [{
"key": "Cache-Control",
"value": "max-age=0"
}]
}

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