Android 4.4 : Un-Clickable URL/URL on mail text

hideki ashida

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Dec 13, 2013
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Can I open a web-page by clicking an URL on mail text?
(I am a Japanese, with poor English...)

After upgrading to the version 4.4(KitKat),
some mail-software(s) could not show web page with clicking URL string on mail text.

From my observations, the differences are below:

Clickable - mail source including:
Content-Type: text/html
Content-Type: text/plain; charset=UTF-8; format=flowed; delsp=yes

Un-Clickable - mail source:
Content-Type: text/plain; charset="ISO-2022-JP"

I suppose that "text/plain" causes un-clickable, but "charset=UTF-8" comes clickable, even if "text/plain".

This has kept happening after upgrading to KitKat(4.4).
With JellyBean (4.3), I have never seen it.

What is the matter , or How do I solve it?