React Proxy | Easiest Fix to CORS Errors

[@toxy6355]

sir, 4 hour,its 8:25AM, i was trying to solve this from around 3:30AM. you cant imagine how happy i am right now to find those 4 line of code in ur first 10 sec of video...... i love you man even turned on bell icon cz u saved my project, i was about to delete it

[@amouzande9102]

it took me two days

[@adeolaadebowale7213]

this is exactly how i feel right now😁😁

[@niranjans.r1930]

Unlike every other youtubers who says bunch of nonsense and non related things before giving the actual information for which we came for, You gave the most important information in the first 10 seconds and proceeded to explain it later. You have our respect.

[@knecks7374]

bro after 2 and a half hours of struggling around , i had lost my hope. and the i decided to watch this full video as my last tether to sanity. and that stupid failed to fetch error is finally gone. thank you dude. god bless you.

[@krishangsharma2185]

I was so stressed out about the whole CORS issue, and this, this is just gold. Straight and to the point explanation! Really appreciate the work!!!

[@krzysztofkrawczynski9404]

14 seconds of video pointed me into right direction. Thank you! Those CORS configurations are pesky . Local frontend, local backend, GitHub, remote frontend, remote backend, DEV, TEST, PROD - all permutations turn development into a quagmire. Thank you for the explanation.

[@mrmaahi4945]

I never thought that I can solve my intital (proxy setup) and final (deployment) problems by just watching one video. Spent all day trying different way to deploy my project but lost functionality after deployment. Finally deployed using the process in the video and everything is working sooo fine and it's soo easy. I can't thank you more, u really saved my day here and explanation is on point that made me think like, "what the hell, I understand everything this guy saying" . THANK YOU SO MUCH

[@oyivosamuel7185]

I dont really know u and this is my first time of watching ur video but ur video just saved me after 4 days of trying to connect my vite React project with my node js without using cors.......U are a life saver for that am subscribing......thanks again

[@---qp8bs]

This entire list of react focussed videos is great, It is obvious you spent a huge amount of energy on taking us along on the learning curve- just compare the first couple of videos to this, it's a great expansion building on the previous knowledge! This video really blew me away with the quick deployment on railway, that's awesome. Also loving the quick snippet at the start showing the main point!

[@number5322]

I spent a whole night trying to circumvent those cors issues. Thank you very much. Now I'll go get some sleep

[@charlesbrz]

I am a bit clueless. But this guy pushed me in the right direction in a way I could understand. Your work is greatly appreciated

[@amouzande9102]

Thank you so much for this tutorial, I've searched lots of videos and site but none of them specified exactly how to solve it in vite. really appreciate it Sam

[@VisionRevealed]

Hi, thank you sam for the videos, really amazing content, best practices, great explanation, good energy. I appreciate everything! Here are few tips if you are using the proxy on vite: - after setting up the proxy, make sure you have /api/example endpoints on your server, because if not, when you build your project the http requests will be send to /api/* endpoints and if they don't exist in your server, that will cause an error;

[@spab87]

THANKS A LOT!!! (I've been trying to fix this bug for couple of hours, installed nginx, like a billion of cors expansions and set everything on my Flask server... thanks for explaining it all

[@Asad_The_Second]

If only all tutorials were this thorough. Thanks for the video

[@tiktaktictac]

This clears up a lot for me man. This is the first time I try to make a fullstack app and all these deployment issues are confusing af. Thumbs up for you 👍

[@HariRavi]

Thank you so much bro for telling the answer in the first 10 seconds. You really are a saviour.

[@FaySaud-j3l]

Thank you so much , you can’t imagine how grateful I am for this clearly instructed solution,I’ve been stuck on this CORS issue for 3 days and went through a lot of solutions and videos but yours is what worked best for me 🙏 thank you again

[@juanguerrero0941]

I needed a solution as fast as possible, I looked a lot of videos that didn't help me, but this one in the first 30 seconds gave me the answer, thank you

[@ashharSartaj]

Can't thank you enough brother. After almost 4 hours of frustration, got the appropriate solution. Also, CORS package wasn't fulfilling the purpose, as suggested by other channels.

[@ankush1228]

i literally spent 2 days on cors and hosting but you made it in 15 min thanks man🥺🥺🥺

[@vinodpatil7314]

sir from past 2 days i spent all midnight just chatgping the proxy thing and today just at 0:13 i got the solution thank you so much

[@jaitjacob]

you make videos of things I've wondered about at some point during my learning process, so good! this cors issue was something I fixed using an extension without really paying attentions to the whys and how's

[@itchybakerzz5101]

I've been looking for a solution about the proxy in vite-react for days, then this video solved it within 20 seconds. Thanks a lot!

[@stalinengoma7680]

Thank you for explaining this. I thought we have to use CORS in the backend and the Proxy in the frontend o mmake it work but your video just cleared my doubts

[@siddhantsrivastav8591]

Really awesome video. Telling the solution at start and then it's upto the user to say. Love it man! Hope to see more youtubers be this thoughtful

[@4xsjb]

What a legend , i've been stuck with this for 3 days . it almost seemed impossible to solve then this video showed up when i was just scrolling 😄

[@ДмитрийБондарь-ж1у]

Thank you! Excellent explanation with real examples. It really helps me to fix my issue and understand the problem.

[@avalanche-arabic]

Thank you so much, after a week of search i got my issue fixed and finally the data renders on my frontend up! Keep up the great work! Thank again!

[@danielcinspace1]

The first video I have ever commented on. CORS was driving me nuts. Thank you!

[@jaisikadhiman9791]

Thanku , after wasted of 2 hours i found the solution of this problem thanku😊

[@CoFloCipher]

Just wanted to say this helped me in a bind. Thank you!

[@sagarchawla4926]

Amazing dude, i was stuck for a whole day figuring out whats wrong.

[@explorelifewithleo]

This video clears all my doubts about proxy server. amazing content!!

[@OgbonnaBlessed]

Thank you so much for making this video sir, it actually helped solve and clear the error I was encountering. Thank you so much sir.

[@chrisdan81]

thank you for this... I have been searching for this for 4 hours ...

[@MatthewMcGuff]

I really like this pattern for building full stack react and node applications. Thanks for the video.

[@vlogs627]

Thanks. It saved my 4 hours of headache.

[@Hadrian-w9c]

Dude, this vid saved my butt.... spent ages trying to solve a proxy issue... Sub'd!

[@javiergarciafillol4454]

Grath, a simply solution for the express & proxy develop

[@FunkyLPify]

Thanks very much for the video! Got a bit confused why some other tutorials like uploading an image to S3 didn't work for me with the way you did it, but it was because of the missing proxy haha

[@mubashirwaheed474]

Thank you, Sam, for explaining that we have our own backend, but what about the case in which we are using third-party API?

[@SamMeechWard]

This method only works if you're serving your react app from the same backend that you're making requests to. So you wouldn't be able to do this with a third party API, but those should already have the correct CORS configurations to allow you to make requests.

[@mubashirwaheed474]

@@SamMeechWard The API endpoint I was using didn't have CORS configured so I used a proxy to fix the issue Thanks

[@pjborowiecki2577]

@@SamMeechWard Thank you so much! Glad to have found your video and it helped me a lot. The only issue I am facing now is that this way, other routes (e.g., /admin) won't work after build - I am seeing "cannot GET /admin" messages. Routing works perfectly fine in development and I am using React Router Dom v. 6. Would you be so kind to explain this or point in the right direction? Thanks again! EDIT: Think I just solved it by adding app.use("/admin", (req, res) => { res.sendFile(path.join(__dirname, "dist/index.html")); }); to my server. Not sure whether this is a correct approach, but it does the trick. Still, Would love to hear how you would solve this. Thanks!

[@kenthugo]

@@mubashirwaheed474 Have you fixed the issue? I have tried using the video's fix but it does not work in Production.

[@mubashirwaheed474]

@@kenthugoin order to fix my issue I used the netlify's serverless function to create a proxy (express server through which request is made to the api and then proxy -backend- send the data to the frontend

[@harshitprasad1064]

God bless you man!!! Thank you very much for sharing what I was looking for in the first 10 seconds of the video instead of scattering it throughout the video... ❤

[@WohSaadgi]

Thank you very much Sir for this Important and deep understanding video

[@74LS_NE555]

thank you for getting to the point from the start [subbed]

[@DeepakisDemigod]

God Bless You ❤❤❤

[@c1ach027]

Thanks you ^^,I find this pbm with my Java Spring api and Vuejs, after your tutorial it's work. Your the best ^^

[@SékouDayifourouKeïta]

You're a master bro. Keep going ❤

[@peyy7645]

Sir, U saved my life 😭😭

[@yoslandymesa5560]

Hi Sir. The tutorial is great, but I got catch for the plugin that helps you to complete code, I think you call it Copilot, but I see so many copilot on VS code. Could you be specific which one are you using?

[@fabianvieri1907]

Great vids, one thing is there a way to automate the build process?

[@eLuars]

you are my new God now 😀

[@rogut8]

Wow, that was fast mate. Thank you Sir :)

[@KCODivyanshuKatyan]

which extensions are you using for auto complete? nice explaination btw.

[@aliyazdan6282]

wow it was such a amazing video it got my lot of doubts cleared

[@mehrosenasir9974]

Thank you so much from Pakistan!!

[@nikolaradulovic9145]

Valuable content, thanks for sharing knowledge!

[@jawadsaleem7495]

You are a life saver vruhh...

[@akashddeepchitransh4537]

Incredible video learned a lot

[@gonzalosandivaras9986]

Love you man! Thanks!

[@linak1909]

omg this is amazing XD immediately subscribed!

[@teminoah2960]

thanks Mr Sam , this absolutely helpful .

[@muhamadsarhad6566]

just WOW! man this was amazing.

[@watcharaponhongthong7869]

Very clear! Thanks:)

[@sambashivaraoboyina3191]

Excellent explanation

[@triviachanel]

Thanks man, you save my life.

[@dhaouiaziz6611]

should i remove the proxy in prod ?

[@abhishekvishal354]

Thank u man so much .... This vid was a blessing

[@111ramico]

Thank you it was delighted 🙂

[@Geekoo]

Wow I can't ask more than this

[@robfielding8566]

note that such a proxy is a trivial Go program. I had ChatGPT write a reverse proxy, and it got it 99% right on the first try. I set env var PUBLIC_URL="." while making a React app, and did this proxying. So I could do hot-editing of the app running at root. And... I could upload another copy of the app anywhere in the tree, and it worked. I am a backend guy, and it drives me nuts when I can't just tar up an app and drop it anywhere into the tree due to urls like "/images/logo.svg" like they own the whole tree. Should be able to upload a list of where the backend endpoints are too. CORS is only about the JavaScript sandbox complaining about code coming from different hosts. And yeah... the whole point of the proxy is to force JavaScript to treat it all as one sandbox.

[@AnsonBenny]

Tnks bro its working very well, keep going👍

[@harshlohana]

Awesome video!

[@carlosromero-r2h]

hi, how can i use 2 proxies in create-react-app?... by the way nice explanation.

[@MelakeselamMengistu]

Thank you for such a clear explanation on CORS and how to resolve related errors. Im facing slighly more issues as I have containerized the frontend react app and backend spring boot api and seeing this CORS errors. I tried to add @CrossOrigin on the spring boot endpoint and also tried to add the serverUrl on the axios.post call. But it is still coming with error like u explained since the ports are different. Both containers are deployed on an EC2 instance using docker-compose remotely. Any recommendation as to how to go about resolving the issue. Much appreciate it.

[@vishnuk9628]

my frontened is react js and .net core is backend, i hosted backend in server but i didnt able to connect local react to core due cors error, after this video it solved but my question u did chnage on development server.js but i dont have such file where i do the chnages?? also what is express in that command ? help me

[@toluwanimiala4729]

great vid 🤌

[@scey]

thank you so much! perfect!

[@kishoreandra]

Waoh thanks for the video Sam 🙌 subscribed 😉

why do I need that proxy? why it would not work with localhost. Sorry - I am new in the field.

[@mugilhustler5532]

U save my day

[@crypto1886]

Thank you, you have recived my sub and like

[@user-fy2hp]

Thanks that's a great helpful information

[@mamory2101]

What would be a suggested way to do this?

[@thesoftwareengineersjourney]

Thanks I was able to fix a problem with this

[@jonamep]

The projects I work normally frontend and server are in complete different repos. So the approach in this case would be to add both localhost and production host at server cors config ?

[@maksymstarodubtsev6704]

thanks, it helps a lot

[@zihuatanejo7741]

Thanks a lot, great video :)

[@onyejemeemmanuel94]

Great but doesn't work for POST requests. All Post requests I make is somehow changed to a GET request by the proxy

[@zarefgamz2515]

vite proxy doesn't change axios configuration

[@ELMlKO]

real hero

[@isaacjames8735]

I tried Using React Router in this method but if did not work???

[@shabariks7735]

i am just using normal react app even though i set it is still showing those error i am using vercel to deploy is there is any other way to fix those

[@modeocheng2190]

love it!

[@abirhal2391]

i add proxy on packaj.js and when i run npm start i get this Invalid options object. Dev Server has been initialized using an options object that does not match the API schema. - options.allowedHosts[0] should be a non-empty string. how i can solve it , i spend 3day on it

[@adrn_en]

Thankyou so much!

[@yungrut6553]

this was get for the CORS fixs and explanation but having never used railway before I got completely lost

[@BobbyAlimardani]

I have a React js (axios) application on the client side and Node js (express) on the backend. I use aws iis ec2 as my hosting server. All works fine both in development and production, except when I connect to Veepn Chrome (from production) then my token header is not found. I don't use proxy, could this be the issue. I would really appreciate it if you could help me.

[@StefanoMercadante]

thank you thank you very much!!!!!

[@Lunolux]

great video, thx

[@chinwubachukwudi4483]

Thank you so much mate