Twitter summary card image not showing - twitter

I've had the card validated, and everything shows up, but the image doesn't. It does show up when I use the twitter validation tool.
Does anyone know why this would be, or how I might debug it?

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What is the recommended way to show validation messages in an iPhone app?

I couldn't find much information about this in Apple's Human Interface Guidelines.
I have a form where input fields are there to collect input from the user, but if validation fails I would like to show the validation message inline just like the way we show validation message on any web page like right underneath it.
Is there a recommended way of doing this in an iOS app like showing all the validation messages right at the bottom of the screen or something like that?
Here is the sample UI that I'm trying to do in iPhone:
I just want to stick with the convention the iOS community follows.
That's all to you, but you can use what Apple uses to notify a user. For instance, a wrong password you can shake a textfield or the whole view. Or you can show a notification-like message or even an alert view to display a message.

UI of sign in with LinkedIn SDK is broken

I have implemented a solution to sign in to my app with a LinkedIn account. When the user clicks on that option the LinkedIn SDK checks for the existence of the native LinkedIn app. If the app exists, the user gets redirected to the LinkedIn app where he is asked if he wants to allow my application to have access to the profile overview and email address.
Unfortunately this view is broken, see screenshots below (the first one taken from an iPhone 6, the second one from an iPhone 6s). Since this is part of the LinkedIn app there is no way for me to fix it. I have implemented the LinkedIn SDK 6 months ago and have not touched it since. The broken view must be rather new.
Could you please tell me what causes this and can you fix it? As you can see on the second screenshot, there is no way the user knows where to "accept", so this is crucial.
We had the same problem. We fixed it by updating the "Application Logo" inside the Developer console for LinkedIn.
If you go the your app -> Settings -> There is an "Application Logo" input, which showed an error before which gave us that white overlay. After adding a complete white square PNG image the white overlay disappeared.

Google recaptcha not working as expected in iphone

I tried to search on the internet for this. I got a related question here but could not get a convincing answer.
I have a web page built in asp.net. I have google recaptcha on this page and is working fine on all desktop browsers and android mobile phones.
The problem is with iphones. The recaptcha does not show the image grid for the user to verify them. When the user touches the checkbox is simply gives a "tick" and lets the user through.
The model of iphone I have checked in is iphone 5C (safari) and iphone 6S (chrome 50) but I think the problem should be with all the models.
Please note it is working fine on simulators like chrome simulators.
The web page is as below:
http://www.infochoice.com.au/infochoice/contact-us.aspx
This is a live webpage so request you to please be careful and gentle in adding comments in it.
I have not added any code here in this question as I think it is more iphone device specific issue and has nothing to do with code.
Will update the question if requested.
Please help! Thanks in advance!
reCAPTCHA actively considers a user’s entire engagement with the CAPTCHA—before, during, and after—to determine whether that user is a human.
In cases when the reCAPTCHA risk analysis engine can't confidently predict whether a user is a human or an abusive agent, it will prompt a CAPTCHA to elicit more cues, increasing the number of security checkpoints to confirm the user is valid.
Therefore some users may just be shown a simple checkbox while others may face image grid verifications.
See this blog post for more details
https://security.googleblog.com/2014/12/are-you-robot-introducing-no-captcha.html

Google Analytics showing message: Bad Event Tracking Code

Google Analytics is showing message "Bad Event Tracking Code" for several my projects. Even for mobile app profile too.
"The message: "The Landing Pages report has a (not set) entry. Verify that tracking code for property (my app name) sends a _trackPageview hit and that it does this before sending any events."
Has somebody got similar issue?
and how to solve this issue because I read about this and can't figure out what is wrong.
I think an issue with you tracking code that have to generate with you google analytics account Here it is step by step description about how to Setting Up Google analytics for Your App
step:1
Go to www.google.com/analytics. The homepage should appear like so:
step:2:
If you do not have a Google account, you will need to create one now by selecting Create an Account on the top-right side of the page.
or sign in in this page.
Once you have logged in, you simply need to click the Access Google Analytics button on the top right.
Step:3
The first screen you see lists all of your accounts.
If you have clients, typically you will have one account set up for each.
If you are new to Google Analytics you will only have the first account you set up.
step:4
Select the Admin view on the top right.
To see the main dashboard area for managing your Accounts, Properties, and Views.
step:5
Select the Property drop-down and click on the Create new property item, like so:
step:6
Google then asks you to submit the details for the app you want to track.
Make sure to choose Mobile app at the top and enter the information as required.
In the Setting up your property section, enter "Cloud App" for the App Name.
step:7
After accepting the terms of service, the website takes you to a page with your tracking ID and the download link for the SDK.
Before you do anything else, write down your app’s Tracking ID, which will be of the form ID UA-XXXXXXXX-Y.
Keep the ID handy, because you will need it soon. For full of description please visit raywenderlich blog
I have received similar errors. However, after testing and checking all the tags, all seem to be in order. I read on PBS that these are false positive alerts, where the errors in fact in correct.
http://spiblog.pbs.org/2014/08/the-art-of-analytics-google-analytics.html

iPad and email link - how do close the full screen mail app?

I am testing a website on an Ipad. It seems that if someone clicks on an email link, an email program will open in full screen (taking the user away from the browser). What makes it annoying is, there is no "close or X" button for them to leave the mail program. How do my ipad Visitors go back to the browser?
Is there a way (or a HTML code) where if someone click on an email link on an Ipad, it will open up the email program in a small window without taking the visitors away from the brower?
iOS's UI is based on the concept of full-screen apps. To return to the browser, your user must return to the browser app. This can be done using the button, or (if configured) some multi-touch gestures (I use a 4-finger swipe to the side, but I can't remember what the default is).
You should not be trying to change the user interface of a specific device from your website. You might help a few users who have not yet got used to their iOS interface, but you will confuse and/or annoy all the ones who have.
If I wrote to you and asked for help because everyone else in the whole continent was driving on the wrong side of the road, would you try to fix the entire road system? No! I hope you'd just tell me how (or not) to drive. Same deal with the existing UI on any device — let your user learn to use it properly.

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