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Feature/add cross-origin image loading example #265

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Nov 15, 2023
Merged

Feature/add cross-origin image loading example #265

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f1cecf3
add cross-origin image loading example
MaxymGorn Nov 15, 2023
b3767e9
fix style
MaxymGorn Nov 15, 2023
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16 changes: 16 additions & 0 deletions src/Cropper.Blazor/Client/Pages/BasicUsage/BasicCropperUsagePage.razor
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Expand Up @@ -75,5 +75,21 @@
</SectionContent>
</DocsPageSection>

<DocsPageSection>
<SectionHeader Title="Load cross-origin image">
<Description>
A cross origin image with a <MudLink UserAttributes="@(new Dictionary<string, object>(){ {"rel", "noopener"} })" Target="_blank" Href="https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/crossorigin">crossorigin</MudLink> attribute and an available Access-Control-Allow-Origin response header can be cropped by <span style="color: var(--mud-palette-primary)"><b>Cropper.Blazor</b></span>.
If you try to start cropper on a cross-origin image, please make sure that your browser supports
<MudLink UserAttributes="@(new Dictionary<string, object>(){ {"rel", "noopener"} })" Target="_blank" Href="https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_settings_attributes">HTML5 CORS settings attributes</MudLink>,
and your image server supports the Access-Control-Allow-Origin option (see the <MudLink UserAttributes="@(new Dictionary<string, object>(){ {"rel", "noopener"} })" Target="_blank" Href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS">HTTP access control (CORS)</MudLink>).
<br><br>
If your image isn't be a cross-origin, set the <CodeInline>CheckCrossOrigin</CodeInline> in the <CodeInline><MudLink UserAttributes="@(new Dictionary<string, object>(){ {"rel", "noopener"} })" Target="_blank" Href="/contract/Options">Options</MudLink></CodeInline> property to <CodeInline>false</CodeInline>.
</Description>
</SectionHeader>
<SectionContent Code="LoadCrossOriginImageExample">
<LoadCrossOriginImageExample />
</SectionContent>
</DocsPageSection>

</DocsPageContent>
</DocsPage>
29 changes: 29 additions & 0 deletions src/Cropper.Blazor/Client/Pages/BasicUsage/Examples/LoadCrossOriginImageExample.razor
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@@ -0,0 +1,29 @@
@using Cropper.Blazor.Models

<div class="img-container">
<CropperComponent Src="cropperblazor.png" Options="options" InputAttributes="InputAttributes" />
</div>

<style>
.img-container {
max-height: 300px;
width: 100%;
}
</style>

@code {
private Options options;

public Dictionary<string, object> InputAttributes { get; set; } = new Dictionary<string, object>
{
{ "crossorigin", "anonymous" } // Another possible values: "use-credentials" or "" (the same as "anonymous"). An invalid keyword and an empty string will be handled as the anonymous keyword. For more information see official https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/crossorigin documentation
};

protected override void OnInitialized()
{
options = new Options
{

};
}
}
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