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
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 have created a react app, it's working fine locally. To deploy it in firebase I used firebase init and followed the steps then npm run build and firebase deploy. Now I'm getting this error on the deployed app's home page.
Page Not Found
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.
Here is the firebase.json file's code.
{
"hosting": {
"public": "build",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
]
}
}
My build folder path is in the root and looks like this:
I have faced same problem but now it is working for me.
{
"hosting": {
"public": "build",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [{
"source": "**",
"destination": "/index.html"
}]
}
}
Order of Cmd to be executed:
firebase init
execute npm run build
firebase deploy
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 ReactJS app I built that works locally , I followed the instructions on the Firebase site
https://medium.com/#devesu/host-a-react-based-website-free-of-cost-with-firebase-hosting-and-connect-with-your-own-domain-53146731807f
and everything went to plan ,inthat there were no errors however when I follow the link provided
https://hydrometric-54ec0.web.app
or
https://hydrometric-54ec0.firebaseapp.com/
I get a default Firebase page and not my app, I think my firebase.json is missing something here it is below
{
"hosting": {
"public": "build",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
]
}
}
If you are deploying any React project in Firebase. look for the below steps.
Once the react build is done through npm run build
Do firebase init
Select Hosting
Then CLI will ask for public directory- Write build and hit enter.
rewrite all urls to /index.html- Type Yes
File build/index.html already exists. Overwrite?- Type No or else it will overwrite your index file with firebase default index.
Before firebase deploy do the following things.
Replace this code in firebase.json
{
"hosting": {
"public": "build",
"ignore": [
"firebase.json",
"**/.*",
"**/node_modules/**"
],
"rewrites": [
{
"source": "**",
"destination": "/index.html"
}
]
}
}
Then inside your react package.json
do blank path for homepage
"homepage": ""
Now yor are good to go for firebase deploy
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"}]}
]
}
}