Why does Android Electrum sometimes put a question mark (?) at end of address

[confirmationbias]

Just trying the Android version of Electrum for first time. It seems if you want to transfer BTC to an Android Electrum wallet, you can "COPY" the wallet's deposit-address and paste it into an email or text message--which is necessary because the wallet's deposit-address is too long to appear on the Android Electrum screen (you get an abbreviated version of the address displayed with an ellipsis (eg. Dkfjlkd8...aasdklf).

But when I choose copy and paste from the Android Electrum wallet and paste it into a message, sometimes it adds a question mark ("?") to the end of the alpha-numeric sequence of the deposit address. Why is it adding a question mark? If I send it to the address with or without the question mark will it still arrive in the same Electrum BTC wallet?

Thank you for any advice!

[ThomasV]

this looks like a bug.
can you post more information?
(android version, language preference, etc)

[ranochigo]

If I send it to the address with or without the question mark will it still arrive in the same Electrum BTC wallet?

Thank you for any advice!

I can't address the first part. Just to answer the above, addresses with a symbol is not considered valid by the Bitcoin network and the wallet should prevent this. And it isn't possible to generate addresses with symbols in the first place.

[confirmationbias]

Thank you to the above two replies to my query.

Yes, some more research confirmed for me that any non-alpha-numeric symbol is NOT a valid part of the Electrum wallet address.

Just so you know, I was getting this ? at the end of my wallet address when I selected "COPY" from the RECEIVE tab of electrum (after filling out all my details). Then when I paste those details into an email it was adding a question mark ("?") to the end of the wallet address, rather than adding a "space". So the pasted text ends up looking like this

   bitcoin:3dkljfJFKDJ3...dlkjf8W7?amount=0.0015

instead of like this

   bitcoin:3dkljfJFKDJ3...dlkjf8W7 amount=0.0015

So for a newbie, you don't know if the "?" is a real part of the wallet address or not.

cheers

[confirmationbias]

this looks like a bug.
can you post more information?
(android version, language preference, etc)

Sure, android version is 5.0.1

Language: English

[ranochigo]

Thank you to the above two replies to my query.

Yes, some more research confirmed for me that any non-alpha-numeric symbol is NOT a valid part of the Electrum wallet address.

Just so you know, I was getting this ? at the end of my wallet address when I selected "COPY" from the RECEIVE tab of electrum (after filling out all my details). Then when I paste those details into an email it was adding a question mark ("?") to the end of the wallet address, rather than adding a "space". So the pasted text ends up looking like this

   bitcoin:3dkljfJFKDJ3...dlkjf8W7?amount=0.0015

instead of like this

   bitcoin:3dkljfJFKDJ3...dlkjf8W7 amount=0.0015

So for a newbie, you don't know if the "?" is a real part of the wallet address or not.

cheers

Ahh I get what your problem is now.

You generated a payment request. The starting "Bitcoin" indicates the program that should run this, the address states the destination and the "?amount=0.0015" states the amount that should be paid.

This isn't a bug and it is designed to work and launch the payment window with all the information filled when the link is clicked. Did you fill in the amount that should be received?