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首次打开app时，提示打开蓝牙权限，打开后点击开始搜索，设备列表没有显示...
本帖最后由 fun_hcf 于 2025-08-11 09:48 编辑
首次打开app时，提示打开蓝牙权限，打开后点击开始搜索，设备列表没有显示蓝牙设备，而且app卡住了点不动，后面需要先在手机系统设置先打开蓝牙，然后启动app才能搜索到设备，请...
Render HTML to PDF in Django site
For my django powered site, I am looking for an easy solution to convert dynamic html pages to pdf.
8 Answers
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Firefox 'Cross-Origin Request Blocked' despite headers
...n to see if there were any mentions of blocking content for the particular site I was having an issue with. Ghostery had an entry so I marked the site as trusted, reloaded the page, and the requests succeeded.
– Professor of programming
Aug 13 '19 at 17:05
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.htaccess redirect all pages to new domain
...irects, I've listed them below:
301 (Permanent) Redirect: Point an entire site to a different URL on a permanent basis. This is the most common type of redirect and is useful in most situations. In this example, we are redirecting to the "example.com" domain:
# This allows you to redirect your ent...
Why is Magento so slow? [closed]
...ommerce/magento/magento-block-caching/
There are good ones on the magento site too (google magento block caching), but its down at the moment.
To add my two cents to the block caching, I'd advise you create your own blocks in /app/code/local, extending the core ones and defining the cache paramete...
CSS, Images, JS not loading in IIS
My all applications were working fine but suddenly all sites under IIS are not loading css, images, scripts. It redirect to login page.
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What size should apple-touch-icon.png be for iPad and iPhone?
...13
One icon for iOS 180x180 px and one for android 192x192 px (declared in site.webmanifest).
<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
<link rel="manifest" href="/site.webmanifest">
#### site.webmanifest
{
"name": "",
"short_name": "",
"ic...
Understanding :source option of has_one/has_many through of Rails
...'ve chosen to namespace the Dog::Breed, because we want to access Dog.find(123).breeds as a nice and convenient association.
Now, if we now want to create a has_many :dog_breeds, :through => :dogs association on Pet, we suddenly have a problem. Rails won't be able to find a :dog_breeds associati...
Facebook Architecture [closed]
...ions for what they do etc. Main underpinning being to learn. Knowing about sites which handles such massive traffic gives lots of pointers for architects etc. to keep in mind certain stuff while designing new sites. I am sharing what I found.
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Setting PayPal return URL and making it auto return?
... Under the Selling Online section, click the Update link in the row for Website Preferences.
The Website Payment Preferences page appears
Under Auto Return for Website Payments, click the On radio button to enable Auto
Return.
In the Return URL field, enter the URL to which you want your p...