performance.js | calculate performance timing for web page | Performance Testing library
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kandi X-RAY | performance.js Summary
calculate performance timing for web page
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QUESTION
My Flutter web app provides 2 error messages after deploying to firebase. The error messages were not appearing prior deployment. I can not find the root cause.
...ANSWER
Answered 2021-May-17 at 21:06I found the solution
I removed the following
if ('serviceWorker' in navigator) { window.addEventListener('load', function () { navigator.serviceWorker.register('flutter_service_worker.js'); }); }I upgraded all the javascript links and launched again Firebase Initiates.
QUESTION
I'm new to the site and React. I built a project in React that works, constantly working. I wanted to upload it to firebase, that's why I did npm run build, I could not upload it to firebase, and now npm start does not work either.
It drives me crazy, this is the error I get:
Error: Target container is not a DOM element.
...ANSWER
Answered 2021-Mar-06 at 10:36You need to add a
public/index.html. This is the DOM element where the React initial component is mounted with ReactDOM.render(, document.getElementById('root'));.
As an alternative, you can create that directly from the JavaScript code, but the above solution is the usual and easiest one.
QUESTION
I am trying to load in the necessary libraries from firebase into an electron project, currently the header looks like this:
...ANSWER
Answered 2021-Mar-01 at 12:30You have two content-security-policy meta tags. Initially you should remove one of them unless you have some specific reason for having a duplicate content-security-policy, as any content must pass all CSPs. Then you need to add www.gstatic.com into the script-src directive.
Also watch out for content-security-policy inserted as a response header as some frameworks may insert CSP as a header. You may also want to move your meta tag to response headers as meta tags don't support all directives of CSP.
QUESTION
I connected to firebase, but I can't get it to render my Angular tags. I've followed the below article and several others, and I'm just not getting it to render.
Angular 4 Firebase - HTML not rendering / reading angular tag
When I deploy to firebase, it renders "test 3" from the native HTML, but not the app-root or component1. It's driving me crazy! Can someone help?
Index from dist folder:
...ANSWER
Answered 2020-Nov-11 at 22:06Looking at your index.html it only has the JavaScript for the firebase libraries, there's no JS for the Angular part. Are you running ng build to bundle your Angular app?
QUESTION
I'm an English teacher in Japan. I'm developing a web app using Firebase Hosting
My students have Google account because we use Gsuite for Education, so I decided to get students' data with Firebase Auth.
...ANSWER
Answered 2020-Jun-05 at 01:23Firebase Authentication only knows about the information that you see in the User and UserInfo objects, and nothing more. Even then, some data might be missing. Auth doesn't have direct access to everything that the provider could possibly know about the person signin in. You would have to somehow query the provider directly using its own APIs, or have the student enter their information and store that in a database (Firebase Auth will not store arbitrary user information.)
QUESTION
I would like to make a web app using Firebase Hosting.
(I use Windows 10, Windows Subsystems for Linux, Debian 10.3 and Google Chrome browser. )
- make audio file using Cloud text to speech API
- upload that audio file to Cloud Storage
- play that audio file on a web browser
I use this code in step 1 and 2. This is in index.js (cloud functions)
...ANSWER
Answered 2020-Jun-04 at 16:17If I correctly understand your question (you need, in the front-end, to know the value of 'audio/' + formatted + '.mp3' that is set in the back-end, i.e. the in the Cloud Function), I think you could easily solve it with writing back to the message document that triggered the Cloud Function and, in your front-end, listen for changes to this document.
Something along the following lines:
Cloud FunctionQUESTION
I use Firebase Hosting and would like to realize this web app. (I use Windows 10, Windows Subsystems for Linux, Debian 10.3 and Google Chrome browser. )
- push buttons and record audio (index.html + main.js)
- upload the audio file to Cloud Storage (main.js)
- transcribe the audio file using Cloud Speech to text API (index.js: cloud function)
- write the transcription on Cloud Firestore (index.js: cloud function)
- get transcription data from Firestore using
.onSnapshot. put that data in a textarea (main.js)
I passed step 1~4, but have a difficult in step 5. When I access the web app, it shows transcription data before I record audio.
This data was made the last time I accessed the web app.
When I go through step1 to step5, I get another textarea which is what I want. Could you tell me how can I avoid the first textarea? Thank you in advance.
This is browser's console.
This is main.js(client side)
...ANSWER
Answered 2020-May-27 at 13:03This is because, as explained in the doc, when you set a listener, there is always an initial call.
In your case, this initial call returns the last document that was created in your collection (because your query is defined with orderBy("timestamp", "desc").limit(1)).
You could maintain a counter that indicates if it is the initial call or a subsequent one. Something along the following lines:
QUESTION
I make a simple audio recording web app using Firebase Hosting. I would like to record audio on browser and upload it to Cloud Storage. When I deploy and access my app, I can record audio. However the app failed to upload the audio to Cloud Storage.
(I use Windows 10, Windows Subsystems for Linux, Debian 10.3 and Google Chrome browser. )
This is an error message in browser's console.
...ANSWER
Answered 2020-May-21 at 11:58I don't know much about the .wav file but you seem to be trying to store an object instead of a blob or a file that Firebase Storage is expecting. Try creating a var blob = recordAudio.getBlob() and replace file in your put() function with blob instead.
QUESTION
I make a simple audio recording web app using Firebase Hosting. I would like to record audio on browser and upload it to Cloud Storage. When I deploy and access my app, I can record audio. However the app failed to upload the audio to Cloud Storage.
(I use Windows 10, Windows Subsystems for Linux, Debian 10.3 and Google Chrome browser. )
This is an error message in browser's console.
...ANSWER
Answered 2020-May-21 at 05:59For you to get the permissions correctly, you need to check your Firebase Storage Security Rules. Configuring them correctly, will provide the access and permissions needed for the audios to be upload to the storage. By default, the rules will ask you to be authenticated, so you need to check to confirm. This way, you can either change your application to have authentication (best option) or the rules.
You can change the rules by accessing the Firebase Console and accessing the tab Rules. If you check the rules and they are similar or equal to the one below, it's confirming that you will need to be authenticated to write in the database, which is causing the error you are seeing.
QUESTION
I use Firebase and I would like to use Cloud Function's Cloud Firestore triggers. https://firebase.google.com/docs/functions/firestore-events
I have made a simple web app to test Cloud Function's Cloud Firestore triggers.
But Cloud Functions don't work.
Could you give me any advices? Thank you in advance.
When I push download button from browser, I get Firestore response.
However, I don't get Functions response. There is no console.log's "Hello Trigger！"
This is my directory structure.
...ANSWER
Answered 2020-May-20 at 05:14You function is set to trigger on the creation of a document called exactly "messages/messages". That means it will only work if you create a message with the ID "messages" in a collection called "messages". I'm pretty sure that's not what you want. If you want to trigger on any new document in a collection called messages, you need a wildcard:
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