I was following this tutorial on https://coursetro.com/courses/20/Developing-Ethereum-Smart-Contracts-for-Beginners.
testrpc is running and i don't know what else to do now. below are the errors.
web3.min.js:1 Failed to load http://localhost:8545/: Response to preflight
request doesn't pass access control check: The value of the 'Access-Control-
Allow-Origin' header in the response must not be the wildcard '*' when the
request's credentials mode is 'include'. Origin 'null' is therefore not
allowed access. The credentials mode of requests initiated by the
XMLHttpRequest is controlled by the withCredentials attribute.
t.send # web3.min.js:1
web3.min.js:1 Uncaught Error: CONNECTION ERROR: Couldn't connect to node
http://localhost:8545.
at Object.InvalidConnection (web3.min.js:1)
at t.send (web3.min.js:1)
at n.send (web3.min.js:1)
at l.accounts (web3.min.js:1)
at index.html:40
I was able to solve this error by downgrading version of web3 to 0.20.6 instead of 0.20.7. Anyone else has this problem, please try this solution.
Related
I have built Poco 1.11 and am unable to get secure SMTP connections, or HTTPS connections in general, to work, with the NetSSL_Win module (i.e. using Windows Schannel rather than OpenSSL). There is a sample in the distribution at NetSSL_Win\samples\Mail\src :
SecureSMTPClientSession session(mailhost);
session.login();
session.startTLS(pContext);
if ( !username.empty() )
{
session.login(SMTPClientSession::AUTH_LOGIN, username, password);
}
session.sendMessage(message);
session.close();
When I run it, the second login() call, after the startTLS() call, throws this error:
SSL Exception: Failed to decode data: The specified data could not be decrypted
The server in this case was smtp.gmail.com, on port 587.
I get the same error message for any other HTTPS client code I try to run as well.
Is anyone successfully using Poco 1.11 for HTTPS connections, using Windows Schannel?
J added all the roles.I still cannot get terraform to build the project.
googlecompute: Error creating instance: googleapi: Error 403: Required 'compute.zones.get' permission for 'pr
ojects/terraform-3/zones/us-central1', forbidden Build 'googlecompute'
errored: Error creating instance: googleapi: Error 403: Required
'compute.zones.get' permis sion for
'projects/terraform-3/zones/us-central1', forbidden
This sort of issue might arise if somehow your cloudservices robot gets removed as a project editor. My best guess is that in your case this is the issue.
This might happen due to API call which has SetIamPolicy that is missing cloudservices robot from the "roles/editor" bindings. SetIamPolicy is a straight PUT, it will override with whatever policy is provided in the request. You can get the list of IAM policies for your project with below command as given in this article.
gcloud projects get-iam-policy [project-id]
From the list, you can check whether below service account has the editor permission or not.
To fix the issue, you can grant the mentioned service account "Editor" permission and check whether that solves the issue or not.
[id]#cloudservices.gserviceaccount.com
With the default configuration, I am unable to make XHRs in my Mithril app if I run its Sails server in localhost. All I get is:
XMLHttpRequest cannot load http://localhost:1337/json/test-realms.json. The 'Access-Control-Allow-Origin' header contains the invalid value ''. Origin 'null' is therefore not allowed access.
If I enable CORS with allRoutes: true, origin: '*' that problem goes away, and instead I get:
DOMException: Failed to execute 'replaceState' on 'History': A history state object with URL 'http://localhost:1337/#!/' cannot be created in a document with origin 'null'.
What exactly is the issue here?
Updates:
I am using sails lift as server.
The web app is loaded via http://test.pink. The domain is set to a LAN IP via the HOSTS file.
No resources are loaded via file:/// or localhost.
Turns out the problem was related to Content Security Policy. I had set sandbox 'allow-scripts' 'allow-forms', which as per this and this would treat the page as an iframe with an unique origin.
Disabling the sandbox policy or adding allow-same-origin suffices to fix it.
I use foursquare API in an application. I have no issues when I run the app on my local machine but on a server I get this error after the user allows the app and is redirected to the callback url.
Fatal error: Uncaught exception 'EpiFoursquareException'
in /home/content/40/9029540/html/earlybirds/test/lib/EpiFoursquare.php:252
Stack trace:
#0 /home/content/40/9029540/html/earlybirds/test/lib/EpiFoursquare.php(208): EpiFoursquareException::raise(Object(EpiCurlManager), false)
#1 /home/content/40/9029540/html/earlybirds/test/lib/EpiFoursquare.php(196): EpiFoursquareJson->__get('response')
#2 /home/content/40/9029540/html/earlybirds/test/callback.php(45): EpiFoursquareJson->offsetGet('access_token')
#3 {main} thrown in /home/content/40/9029540/html/earlybirds/test/lib/EpiFoursquare.php on line 252
Anyone knows the reason?
I use PHP and mysql
Make sure you send the redirect_uri param when building your auth url and that it matches the one on the APP details page. I had to make two apps, one for testing locally and one for testing on my dev server which had, of course, a different URL.
Hello i have some problem when using SMTP mail using PHP.
when i am use mail function that time always it shows
errore Like "Unable to find the socket transport "http" - did you forget to enable it when you configured PHP?"
How can i slove this problem at (Project is on Cpanle)
Kindly help me
It would help to see a code snippet.
The error message suggests that you are using fsockopen() and passing it an http URL instead of an hostname.
You may also have an http url somewhere else (in your code or a config file) that is passed to fsockopen() at some point. Make sure your smtp server hostname doesn't start with http://.