I have a react app that uses react-router with a Router that looks like:
<Router>
<div>
<Route exact path="/" component={Homepage} />
<Route path="/map/:uid" component={Userpage} />
<Footer />
</div>
</Router>
The app is hosted using Firebase hosting.
If I open my website and click around such that the router takes me to /map/uid, it loads fine. But if I close the browser and then try to explicitly navigate to <domain>/map/<known uid>, I get a "no page found" page from Firebase. This is my first time using react-router.
Update #1
I have updated my firebase.json to:
{
"hosting": {
"public": "build",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
]
}
}
I no longer receive the "Page not found" page; however, the content of my react app never loads, and I notice in my console an error:
Uncaught SyntaxError: Unexpected token <
Update #2
I now understand why I am getting the error. Looking at the Sources tab in Chrome dev tools, my static/ folder has a strange name (static/css rather than static) only when I directly navigate to /map/{known uid}. When I navigate to the home page, all loads fine.
This explains the error. I am still not sure how to fix.
For me I could see the root url but other routes like "/pricing" were giving me a 404. I added this to my firebase.json file and now it works. Also make sure firebase/auth is allowed to work on the domain. There is a setting in the auth section of firebase.
"rewrites": [ {
"source": "**",
"destination": "/index.html"
}],
My full firebase.json
{
"firestore": {
"rules": "firestore.rules",
"indexes": "firestore.indexes.json"
},
"hosting": {
"public": "build",
"rewrites": [ {
"source": "**",
"destination": "/index.html"
}],
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
]
},
"storage": {
"rules": "storage.rules"
}
}
Late answer, but I'm facing with the same issue. I solved this with 2 steps:
update firebase.json like this
{
"hosting": {
"site": "myproject",
"public": "build",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
]
}
}
set the base url in index.html like this
<!DOCTYPE html>
<html lang="en">
<head>
<base href="/">
.
.
.
Late to the party, but try removing the "homepage" key from your package.json (or making sure that it is correct relative to where the homepage is stored.
Late answer, but it solved the problem for me:
When doing firebase init it will ask whether it will be Single Page App or no. Default answer is No, however, just choose Yes and it will work.
You're getting this error because of client-side routing. (Deep inside React)
When building the react app in the build(folder) you see only one
index.html file.
when you hit URL with YOUR_DOMAIN/map Now firebase is trying fetch
build->map->index.html but is present in your build folder.
So you can do
Are you can use react-router-dom. After building application build folder ,
index.html you can mention <base href="/"/>.
Try setting the cleanUrls property to true.
See Firebase docs for more info
"hosting": {
// ...
// Drops `.html` from uploaded URLs
"cleanUrls": true
}
What about specyfying the basename in Router? Something along this:
<Router basename='/map/5AJA3RefFuTZ8z4Gn6BjMgZRgPZ2'>
Related
when I try to deploy my react app to firebase, the url leads to a blank page (although the favicon is up).
After googling the problem the best post I could find suggested I make sure that the firebase.json file is pointing to my build folder, but it is.
And it is still not working.
And I do not know what to try next.
Any ideas?
My firebase.json for context:
{
"hosting": {
"public": "dist",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
]
}
}
I found this on another post, but I waited to try it because it far from the ranked answer.
Worked for me tho:
https://stackoverflow.com/a/68506094/20063520
I've built a nextjs app, with npm run build && npm run export and deployed to firebase using firebase deploy command. Prior to that, I've used firebase init in my project folder with just using the default options eg. not a single page application.
After I go and visit my project in firebase provided url however, I see the home page which is index.html, but whenever I use any other slug it throws a 404. Why this is happening ? I`ve included my firebase.json file, in case it might help.
firebase.json
"hosting": {
"public": "out",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
]
}
}
For everybody that wants to deploy a statically exported Next.js app to Firebase hosting:
You would have to add "cleanUrls": true to the hosting configuration in firebase.json like so:
"hosting": {
"public": "build",
"ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
"cleanUrls": true,
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
]
},
Without the "cleanUrls" configuration, the user would have to navigate to
https://example.com/login.html so that Next.js routes to the login page for example. With the parameter, a web request to https://example.com/login would work.
With the rules you have Firebase Hosting serves the exact file that the user requested.
To rewrite other/all URLs to your index.html, you'll need to add a rewrite rule to your firebase.json. A typical rewrite rule for single-page applications may look like this:
"hosting": {
// ...
// Serves index.html for requests to files or directories that do not exist
"rewrites": [ {
"source": "**",
"destination": "/index.html"
} ]
}
If anyone is still looking for this, this is what fixed it for me:
I used dynamicLinks as stated in the firebase hosting docs for the rewrites like so in my firebase.json file:
{
"hosting": {
"public": "out",
"ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
"cleanUrls": true,
"rewrites": [
{
"source": "/**",
"dynamicLinks": true
}
]
}
}
This should allow dynamicLinks to start at ("https://CUSTOM_DOMAIN/{dynamicLink}").
I have a react application that works fine locally. However after I deploy to Azure Web App I get following error in console:
https://xxx.azurewebsites.net/manifest.json 404 (Not Found)
I can see the purpose is when people install the app on a mobile, then REACT renders differently dependent on the devise. I can also see it is located in the index.html file:
<link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
As my app is a web site does this file has any effect? Can I just delete it or should I try to solve the error? And if yes how?
Are you using create-react-app?
The manifest makes only sense when you want that your users can install your app so it works without an internet connection e.g. Thats in the end a Progressive Web App. So for you it's probably fine to just remove the line.
(under which path does your app serve? Maybe you have to specify a base path: https://create-react-app.dev/docs/deployment/#building-for-relative-paths
have you tried this?
go to angular.json
add manifest.json location in assets
"assets": [
"src/favicon.ico",
"src/assets",
"src/manifest.json"
],
restart dev server using
ng serve
For production apps, you have to target build for the public in firebase.json like the following:
{
"hosting": {
"public": "build", // Here you have to make changes.
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
],
"headers": [
{"source": "/service-worker.js", "headers": [{"key": "Cache-Control", "value": "no-cache"}]}
]
}
}
i was trying to deploy my react SPA on Firebase, but got only blank page with such console error:
"Uncaught SyntaxError: Unexpected token <"
chrome console
chrome_elements_blank
to exclude third part libraries I created new React-app to deploy. and got exactly same problem.
terminal log:
part1
part2
part3
part4
anybody knows how to fix this?
link to firebase deployed create-react-app start page
Code from firebase.json
{
"hosting": {
"public": "build",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"redirects": [
{
"source" : "*",
"destination" : "/index.html"
}
]
}
}
Your main.js contains the page html data again.
<!doctype html><html lang="en"><head>....
As the browser loads the JS file and tries to interpret it, it fails, as HTML is clearly not javascript. It tries to communicate its confusion with "Oh I found a < but that is not what I expected".
You seem to have configured a default route for your server and each and any request returns your index.html.
I noticed in one of your screenshots, that you said "yes" to "Rewrite all urls to index.html" - it does exactly that. You should not activate that, as ALL you requests will then always return the index.html.
Please have a look in your firebase.json file. You will find the instructions for hosting and routing in there.
API Docs are here:
https://firebase.google.com/docs/hosting/full-config
You might want to have a special look into the redirects array, looking like this:
"redirects": [
{
"source" : "*",
"destination" : "/index.html"
}
]
Here you tell the server to redirect all traffic to /index.html. Delete the redirect entries, redeploy and all will be well.
So this redirects section will most probably solve the issue:
{
"hosting": {
"public": "build",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"redirects": []
}
}
This also can be an issue in the package.json file, if you have set the attribute homepage
{
"name": "project-name",
"homepage": "https://project-url",
"version": "0.1.0",
}
to solve this issue remove the homepage attribute.
thanks everyone for quick reply. problem was solved with adding "redirects":[] to firebase.json like this:
{
"hosting": {
"public": "build",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"redirects": [],
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
]
}
}
100% Working Example.
Solved Blank Page Error in React App Hosting in Firebase .
You can read this blog
Host Your React Web App in few minutes.
Command runnning in Wrong sequence =>
firebase login
firebase init
firebase deploy
npm run build
Command runnning in Correct sequence =>
firebase login
firebase init
npm run build
firebase deploy
My solution was to simply change firebase.json to use the build folder instead of public:
enter image description here
I've deployed my angular app to firebase. I can see the sign in page fine but I get the following error when I reload the page:
This file does not exist and there was no index.html found in the current directory or 404.html in the root directory.
Why am I seeing this?
You may have deployed the wrong directory for your application. Check your firebase.json and make sure the public directory is pointing to a directory that contains an index.html file.
You can also add a 404.html in the root of your site to replace this page with a custom error page.
So as the error suggests I checked my firebase.json file and it displays this:
{
"firebase": "******",
"public": "dist",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
]
}
Here you can see that my public folder is my dist folder. This dist folder is actually where I place all of my files (css,js,html and the index.html) when gulp builds it all. The folder structure looks like this:
dist
css
images
js
templates
index.html
So the destination folder above does have an index.html page - so why am I getting this error? Angular should be stepping in here and handling all routing but that doesn't seem to be the case.
EDIT
I fixed the problem - this problem is caused by Firebase (indeed all servers I think) believing that each Angular state is a folder which should contain its own index.html file - obviously this isn't the case.
What needs to happen is for it to only refer to our index.html in the root of the folder. To do that you need to modify your firebase.json file to the following:
{
"firebase": "app-name",
"public": "dist",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [{
"source": "/public/**",
"destination": "/public.html"
},
{
"source": "**",
"destination": "/index.html"
}]
}
The important parts here are the rewrites and the source objects. Refer to the firebase.json explanation page for more info on this: firebase.json
2018 and had the samed problem. Katana24 gave a good answer but since then, firebase updated a bit. Here is the Katana24 answer updated :
firebase.json:
{
"functions": {
"predeploy": [
"npm --prefix \"%RESOURCE_DIR%\" run lint"
],
"source": "functions"
},
"hosting": {
"public": "dist/YOURAPPNAME",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [{
"source": "/public/**",
"destination": "/public.html"
},
{
"source": "**",
"destination": "/index.html"
}
],
"storage": {
"rules": "storage.rules"
}
}
}
If you use firebase-tools you can hit y (yes) at the question:
Configure as a single-page app (rewrite all urls to /index.html)?
in `firebase.json`, `hosting` section add the `rewrites`
"rewrites": [ {
"source": "**",
"destination": "/index.html"
} ],