Go-ethereum: can't use geth node from browser web3.js due to CORS

[vitaliy-kuzmich]

I tried :
geth --datadir="1" --networkid 1 --verbosity 4 --autodag --ipcdisable --port 30302 --solc "C:\Program Files\Ethereum 0.9.41\Release\solc.exe" --genesis genesis.json --bootnodes=none --rpcport 8102 --rpcaddr "127.0.0.1" --rpccorsdomain "http://127.0.0.1:8102" console
is not working.

but --rpccorsdomain "*" works fine...

[obscuren]

Could you be slightly more specific when you say "it doesn't work"? What exactly doesn't work?

[vitaliy-kuzmich]

firefox does not get any data from the geth node, in the firefox console says can't execute CORS

[karalabe]

Your CORS domain is the origin domain your website runs on. Currently your 127.0.0.1.8102 would suggest you try to access geth from a web server running on your local machine, but looking at your --rpcport option, I see that you've assigned geth that port. So your CORS configs esentially mean that geth allows itself only to talk to itself :P

if you are running a website from example.com, then you need to set _that_ as the --rpccorsdomain.

[vitaliy-kuzmich]

thank you --rpccorsdomain "localhost:80" works now from html file.

[hongsw]

geth --rpc --rpccorsdomain "http://localhost:8080"
worked for me

[keltanas]

geth --rpc --rpccorsdomain "*"

[Yooooomi]

--rpccorsdomain "*" didn't work for me. I'm using --rpccorsdomain=*
Note the = and no quotes

[mbsaberi]

I've installed Apache/PHP to talk to Geth (Using localhost:8545 as the JSON-RPC server).
Is using --rpccorsdomain recommended or even required while using Geth only on a local machine like this?